Building hero power efficiently in Z Route: Redemption is less about upgrading everything and more about concentrating resources where they create the biggest permanent gains.
The most important rule is:
Build one squad first. Finish it. Then build the next.
That means your first five heroes should receive almost all of your Hero EXP, shards, skill books, gear, and squad-specific research until they are genuinely established.
Hero Progression
Build Your First Squad
One squad. One focus. One victory.
Three factions (Hero Types)
Warrior
Balanced heroes with solid offense and defense.
Assault
Balanced heroes with solid offense and defense.
Tactical
Balanced heroes with solid offense and defense.
All three factions are balanced. Differences come from skills and roles, not base stats.
Frontline vs Backline (Roles)
Frontline
- Tanks and bruisers
- Stand at the front
- Absorb damage
- Protect your backline
Backline
- Damage dealers and support
- Stay behind the frontline
- Deal damage or provide support
- Keep your team strong
Faction Advantage (Counter System)
Use the counter system to your advantage. Higher damage and reduced damage taken against the countered faction.
Same-Faction Squad Bonuses
3 Heroes
Activate basic bonus
3 + 2 Heroes
Stronger bonus
4 Heroes
Even stronger bonus
5 Heroes
Maximum bonus
The more heroes of the same faction, the stronger your squad becomes.
F2P or Medium Spend Players
Choose Warriors First
- Reliable and forgiving
- Easier to develop
- Strong in all stages
- Great for long-term progress
Golden Rule
Squad first.
Finish it.
Then build the next.
Whales / High Spend Players
Choose Assault First
- Highest damage potential
- Faster clears in all content
- Dominates early when well built
- Maximum power for maximum investment
Key Takeaways
- There are 3 factions: Warrior, Assault, Tactical.
- Each hero is either Frontline or Backline.
- Use the counter system to win fights.
- Build same-faction squads for powerful bonuses.
- Choose your first faction and commit.
- Finish your first squad before building another.
1. Start with one primary squad
Do not level your whole roster evenly.
Your first squad is the engine that drives almost every other progression system:
- Campaign progression
- Arena performance
- PvE
- alliance events
- City Conquest
- better rewards
- stronger resource income
- access to harder content
A strong first squad creates a snowball. A wide but mediocre roster does not.
What to invest in first
Prioritize:
- Hero level
- Stars
- High-value skills
- Gear
- Squad research
Bench heroes should wait unless they are about to replace someone in your active five.
2. Understand faction and role before chasing raw power
Z Route heroes belong to one of three factions:
- Warrior
- Assault
- Tactical
They also function primarily as either:
- Frontline
- Backline
Those are not the same thing.
A hero can belong to a faction while still filling a specific battlefield role.
Frontline heroes
Frontline heroes are usually your:
- tanks
- bruisers
- damage absorbers
- team protectors
Their job is to keep your backline alive.
Backline heroes
Backline heroes usually provide:
- sustained damage
- burst damage
- buffs
- debuffs
- support
A higher-power backline hero is not automatically a good replacement for a lower-power tank.
Role fit matters.
3. Use same-faction bonuses intelligently
The game rewards you for building around matching factions.
In general, more heroes from the same faction means a stronger squad bonus.
The exact breakpoints shown in-game can vary by system, but the strategic lesson is stable:
Do not mix factions randomly just because individual heroes look strong.
If two squad options are close in raw hero strength, the one that activates a stronger faction bonus may perform better overall.
Practical rule
For your first squad:
- choose a faction
- build around it
- avoid constantly swapping heroes
- finish that squad before seriously building another faction
4. Hero level is one of your biggest power sources
Hero level increases:
- ATK
- DEF
- HP
- total hero power
- Command
Command is especially important because it affects how many soldiers that hero contributes to the squad.
We confirmed in-game that Command can be made up of:
- Level Bonus
- Building Bonus
- Survivor bonus
That means city progression directly affects hero progression.
If a hero says:
Need to upgrade base level
your Base is now the bottleneck.
Best practice
Keep your main five heroes as close to the current level cap as possible.
Do not spend Hero EXP on bench heroes while your primary squad is still behind.
5. Use Hero EXP efficiently
Hero EXP should go almost entirely into your main five.
Good sources include:
- Radar
- AFK rewards
- Special Operations
- Campaign progression
- Arena rewards
- events
- passes
Avoid this mistake
Do not build a roster that looks like:
- Lv.105
- Lv.105
- Lv.105
- Lv.103
- Lv.101
- Lv.80
- Lv.75
- Lv.70
- Lv.65
when those lower heroes are not actively helping your first squad.
A concentrated team produces more useful power.
6. Learn the shard economy before spending universals
There are three important shard categories.
Hero-specific shards
These only work on that hero.
Purple universal shards
Used for SSR heroes.
UR universal shards
Used for UR heroes.
Do not treat them as interchangeable.
Best use of universal shards
Use specific hero shards first, then use universals to close the gap.
Example:
A hero requires 60 shards.
You already have:
34 / 60 specific shards
That means you only need:
26 universal shards
That is a far more efficient use of universals than spending all 60 on a hero with no specific shards.
Golden shard rule
Specific shards first. Universal shards only close the gap.
7. Cheap star-ups are often excellent value
A star-up that costs only a handful of universal shards can be worth doing immediately if the hero is already in your main squad.
Examples:
- 4 universal shards needed
- 10 universal shards needed
- 20 universal shards needed
These are relatively cheap permanent upgrades.
A hero requiring the entire universal-shard cost deserves more scrutiny.
Be especially careful with UR universals
UR universal shards are much harder to replace.
For premium heroes, only spend them when:
- the hero is a long-term core hero
- the star-up is meaningful
- you are not wasting them on a temporary roster slot
8. Stars can unlock more than raw stats
Star-ups do not just increase power.
They can also improve or unlock:
- skill effects
- durations
- additional targets
- stronger passive bonuses
- squad-wide effects
That makes some star thresholds much more important than others.
Always read the star milestone text before committing shards.
9. Upgrade skills based on value, not appearance
Skill books are scarce enough that you should compare actual improvements.
Look at:
- current effect
- next-level effect
- who the skill affects
- cooldown
- duration
- whether it is passive or active
Example: Arnold
We compared two Arnold skills.
Field Support
At the time:
- Physical damage reduction: 24.9% → 25.2%
- duration: 8 seconds
- cooldown: 9.27 seconds
- unlocked star effect: affects all allies
Tactical Shield
At the same time:
- incoming damage reduction: 16.0% → 16.1%
- applies to front-row allies
For that specific upgrade, Field Support provided the better return.
The lesson is not that one skill is always superior.
The lesson is:
Compare the actual next-level improvement before spending books.
10. Passive skills only affect who the wording says they affect
Do not assume “Passive” means squad-wide.
If a skill says:
In combat, increases Crit Rate…
with no mention of allies or squad members, it normally applies only to that hero.
When a skill affects others, look for wording such as:
- all allies
- front-row allies
- rear-row allies
- squad
- specific faction
- specific class
The target wording matters more than the word “Passive.”
11. Build a balanced formation
A strong squad normally needs enough frontline durability to keep the damage dealers alive.
Think in terms of:
Frontline
- survivability
- shields
- damage reduction
- taunting or protection
- keeping enemies away from your backline
Backline
- damage
- support
- buffs
- debuffs
- sustained output
If your squad dies before the timer:
improve survivability.
If your squad survives but times out:
improve damage.
That distinction can help decide whether your next upgrade should go toward a tank or damage dealer.
12. Faction counters matter
Z Route includes a faction counter relationship.
Use it when selecting squads for difficult fights.
Even if your normal squad is stronger on paper, a favorable faction matchup can improve performance through increased damage and reduced incoming damage.
Do not evaluate fights only by the displayed power number.
13. Squad-specific research is a major progression system
Squad research matters beyond the world map.
We confirmed that Arena’s selectable Squad Buffs correspond to squad research branches:
- T1 = Squad 1 research
- T2 = Squad 2 research
- T3 = Squad 3 research
- T4 = Squad 4 research
That means investing deeply in Squad 1 research creates a stronger reusable tech package.
Early priority
For most early and midgame players:
Build Squad 1 research deeply before spreading heavily into Squad 2 and Squad 3.
14. Do not chase account power for its own sake
Total account power can be inflated by:
- leveling bench heroes
- upgrading secondary squads
- improving things that do not help your primary battle team
That number looks impressive but may not help you clear harder content.
A better target is:
stronger Squad 1 power and better battle performance
rather than the largest possible account-power number.
15. When should you replace a hero?
Do not replace an established hero just because a tier list ranks someone else higher.
Compare:
- current level
- star level
- skill investment
- gear
- faction bonus
- battlefield role
- specific shards available
- universal shard cost
- actual battle performance
An underdeveloped “S-tier” hero can easily perform worse than a fully developed “A-tier” hero.
Good replacement threshold
Consider swapping when the new hero is:
- at or near your level cap
- reasonably close in stars
- properly skilled
- filling the correct role
- contributing to the faction plan
Then test both against the same content.
16. F2P and moderate spend players should value consistency
If you are free-to-play or spend moderately, your first squad should prioritize:
- easy shard access
- good survivability
- reliable progression
- useful performance across multiple game modes
Avoid constantly rebuilding around the newest hero.
Every rebuild has an opportunity cost.
17. High spend players can pursue higher-ceiling damage teams
Players spending heavily can afford to:
- accelerate premium shards
- finish stars faster
- push more aggressive faction compositions
- replace developed heroes more frequently
But the same rule still applies:
Finish the squad you are building.
Money does not make scattered investment efficient.
It only makes the waste more expensive.
Recommended Hero Progression Order
For each hero in your main five:
- Reach the current level cap
- Complete efficient star-ups
- Upgrade the highest-value skills
- Improve core gear
- Benefit from Squad 1 research
- Only then invest heavily in secondary heroes
Common Hero Progression Mistakes
Avoid:
- leveling every hero you unlock
- mixing factions with no plan
- spending universals when specific shards will eventually cover the cost
- using UR universal shards casually
- upgrading low-impact skills before major ones
- replacing a developed hero too early
- ignoring frontline survivability
- chasing total account power instead of usable squad power
- spreading research across too many squads
Quick Decision Framework
When deciding where to spend your next resource, ask:
Hero EXP
Is everyone in my main five at the current cap?
If no, level them first.
Universal shards
Does this finish a meaningful star-up on a core hero?
If no, save them.
Skill books
Which skill gives the largest real improvement or affects the most valuable targets?
Upgrade that one first.
Gear materials
Is this hero part of my long-term first squad?
If no, save the material.
Research
Will this improve the squad I actually use?
If yes, it probably deserves priority.
Final Rule
If you remember only one thing from this guide:
One squad. One focus. Finish it before building the next.
That single discipline prevents more wasted progression than almost anything else in Z Route: Redemption.
Evidence:Based on the author's own in-game testing and observation (skill comparisons, Command bonus sources, Arena squad-buff tiers). Faction names and squad-bonus breakpoints are player-observed and may shift with balance updates.