BeLa

Bella 'n' Co

Last Z · Main Formation Hero Upgrade Guide

BeLa
One formation · five heroes · every upgrade working together
The golden rule: build your main five first - and build them together. Your best fragments, skill books, orange equipment, Power Cores and exclusive-equipment fragments should strengthen one formation before you start feeding Formation 2 or 3. Do not create one superstar and four passengers.
1

Build the Formation First

Two survive. Three kill. All five work as one.

Enemy / front of battle
DefenceFront / farthest
DefenceFront / farthest
Protect the damage line
AttackBack / closest
AttackBack / closest
AttackBack / closest
You / rear of formation

Formation rules

  • Defence heroes go furthest from you so they take the first damage.
  • Attack / DPS heroes go closest to you so they live longer and keep dealing damage.
  • Whenever practical, build all five from the same faction. Faction deployment bonuses are worth more than randomly combining five individually strong heroes.
  • Choose heroes you expect to keep. Constantly replacing a hero means fragments, skill books and equipment progress are stranded.
  • Do not build three “okay” formations. Build one dangerous formation.
  • Check formation power before you change the order. Move one hero, check it again, and keep the better result. It may take several attempts to find your strongest layout.
  • If two layouts are close in power, test both against the same target with the same troops and compare the battle result. Power is a guide; actual performance decides.
2

What to Upgrade First

Spend resources in the order that makes the whole formation stronger.

Lock in your main five

Pick the faction and the five heroes you are actually going to fight with. Stop using premium resources on heroes outside that group unless they provide an account-wide utility you specifically need.

Stars / fragments - raise the five in stages

Keep the main five broadly even. Pick a useful breakpoint and take one hero there, then move to the next hero - for example: Hero 1 to 3★, Hero 2 to 3★, Hero 3 to 3★, and so on until all five are there. Then start the next round toward 4★. This gives the whole formation useful star/skill gains instead of leaving four heroes weak while one absorbs every universal fragment.

Hero levels

Keep the main five moving together. Your frontline cannot be twenty levels behind and still protect the damage line. If XP is tight, the five fighting heroes get it before anyone else.

Skills

For the main formation, upgrade the skills that affect troops or the whole formation before small personal-stat gains. The third skill is often the most important decision - see the next section.

Orange equipment

Get a proper orange foundation across the main five. Gear must match role: defenders need survivability; attackers need damage. Do not over-invest in temporary purple equipment.

Exclusive / special equipment - use the same ladder

Treat exclusive equipment like hero stars: upgrade to a sensible breakpoint, then move to the next main hero. Do not pour every universal exclusive fragment into one piece while the other four are sitting at their starting level. Once the important exclusives are established across the formation, begin the next upgrade round.

Promotion, advanced gear & mythic

Once the orange foundation is healthy, promote efficiently and keep the formation balanced. Do not create one monster gear piece while the rest of the formation is paper-thin.

The fragment ladder - one breakpoint at a time

Think in rounds, not favourites. Finish the current target across the main five before pushing the next big target.

Round 1Hero 1 → 3★Reach the breakpoint
ThenHero 2 → 3★Same breakpoint
ContinueHeroes 3–5 → 3★Bring the formation up
Round 2Start 4★Repeat across all five
Exception: if one hero is one small upgrade away from unlocking a genuinely major skill breakpoint, finish that breakpoint first - then return to balancing the five.
Step 1Main FiveChoose the team
Step 2Stars + SkillsRaise in rounds
Step 3Orange GearBuild the base
Step 4Exclusive GearRaise in rounds
Step 5Promote / MythicRaise the ceiling
3

Hero Fragments vs Universal Fragments

Use specific fragments first. Protect universal fragments for the moments that matter.

Hero-specific fragments

  • Use a hero's own fragments first when upgrading that hero.
  • They can only help that hero, so there is little value in hoarding them if the hero is a confirmed long-term member of your main five.
  • If the hero is temporary or likely to be replaced soon, do not spend extra universal fragments just because you already have some of their own fragments.

Universal fragments

  • Treat universals as premium flexibility. They can finish whichever main hero needs the next meaningful breakpoint.
  • Use them mainly on your main/custom formation, not on secondary formations or collection heroes.
  • Spend them to complete a star or unlock an important breakpoint - not to create a little progress with no immediate benefit.

The simple rule

Use the hero's own fragments first

Never consume universals for progress that hero-specific fragments can already cover.

Check the next breakpoint

Ask whether the universals will actually complete a useful star-up, unlock or strengthen a major skill, or materially improve a permanent main-five hero.

Use universals only when the answer is yes

If they finish a meaningful breakpoint for a long-term main hero, spend them. If they only move a progress bar, save them.

Return to balanced progression

After finishing the breakpoint, continue the round across the other main heroes - for example, bring each hero to 3★ before beginning the 4★ round.

Good times to use universals

  • Finishing a main hero's next full star.
  • Unlocking or improving an important third skill.
  • Completing a major exclusive-equipment or hero breakpoint that materially benefits the formation.
  • Finishing a small gap on a hero you know will stay in your main five.

When NOT to spend

  • On temporary heroes, gathering heroes or Formation 2/3 while Formation 1 still needs them.
  • When the spend does not finish a useful breakpoint.
  • When you are likely to receive more hero-specific fragments soon.
  • When a new seasonal hero is about to replace the hero you are considering upgrading.
  • Just because you have universals sitting in your inventory.
Universal fragments are premium flexibility: spend them to finish meaningful breakpoints, not to create random progress. The exception to perfect balance is a hero that is only a small number of fragments away from a genuinely major breakpoint - finish it, then go back to the round.
4

The Third Skill Matters

Look for formation-wide value, not just a bigger number on one hero.

III

The third skill is often where a hero stops being “just another fighter” and starts improving the entire march. For your main formation, a troop-wide or formation-wide effect normally deserves priority over a small personal ATK/DEF increase.

Troop HPTroop DamageTroop CapacityDamage ResistanceSkill DamageFaction Troop Buff

High-priority third skills

Skills that improve your formation’s troop HP, troop damage, troop capacity, skill damage or another persistent combat multiplier. Seasonal heroes increasingly use these kinds of effects, which is why their third skill can change the whole formation rather than only the hero.

Lower priority when books are scarce

Purely personal hero ATK/DEF or a skill that does little for the role that hero plays. These still matter and you should eventually max the main five, but they come after the skill that makes all five heroes and their troops better.

Seasonal examples: later heroes can use third skills for faction troop HP/damage, troop capacity, or skill-damage multipliers. Always read the exact wording on your hero: if the effect applies to troops, a faction, or the whole formation, it is usually a premium upgrade target.
5

Special Equipment - Upgrade It with a Purpose

Exclusive gear is not decoration. It should amplify the hero's job.

WeaponDamage priority
HelmetSecondary stats
ArmorSurvival priority
BootsBalanced stats
ExclusiveSkill amplifier
Hero roleStandard gear focusWhy
Attack / DPSWeapon → Helmet → Boots → ArmorSpend first where the hero actually wins the fight: damage output.
Defence / FrontlineArmor → Boots → Helmet → WeaponThe frontline's job is to stay alive long enough for the back row to work.

Exclusive equipment priority

  • Only spend meaningful exclusive resources on heroes that are staying in the main formation.
  • Unlock the exclusive piece when it gives a meaningful improvement to an important combat skill.
  • Use universal / versatile exclusive fragments on the hero with the biggest formation impact, not simply the hero you like most.
  • When the exclusive bonus improves an important third skill, it can outrank another standard gear promotion.

How to progress it

  • Unlock first, then raise in rounds. Take one main hero's exclusive to the chosen breakpoint, then move to the next hero and bring theirs to the same useful stage.
  • A simple pattern is Hero 1 → target level, Hero 2 → target level ... Hero 5 → target level, then begin the next round. Keep the five useful rather than making one exclusive enormous.
  • Make an exception only when the next exclusive level unlocks or substantially improves a major formation-wide skill.
  • Reassess whenever a new seasonal hero permanently enters your main five. Do not keep feeding exclusive fragments to a hero you are about to replace.
  • Never burn universal exclusive fragments on Formation 2 while Formation 1 still has a high-impact exclusive waiting.
For orange standard gear, promotion unlocks after enhancement level 20. Early promotion steps are comparatively efficient, so build a balanced base across the main formation before pushing one item far ahead. Advanced/mythic investment should continue to follow role: weapon first for damage heroes, armor first for defenders.
6

30-Second Formation Check

Before you spend the next fragment, book or core.

Same faction?

Are all five from the same faction where practical, so the formation bonus is fully working?

Power before & after?

Note formation power before changing hero order. Swap one position, check again, and repeat until you find the strongest arrangement.

Correct positions?

Start with two defence heroes furthest from you and three attack heroes closest to you - then verify the order with formation power and combat testing.

Main five only?

Are premium fragments, books, orange gear and Power Cores going to the heroes you actually fight with?

Fragments balanced?

Are you raising the main five to the same useful star breakpoint - e.g. each to 3★ before pushing the next round?

Specific before universal?

Have you used hero-specific fragments first and saved universal fragments for a meaningful main-five breakpoint?

Third skills?

Have you prioritised troop-wide / formation-wide third skills over minor personal stat gains?

Gear matches role?

Weapon-led upgrades for DPS; armor-led upgrades for frontline defence.

Exclusive has a job?

Is special equipment improving a hero you are keeping and a skill that materially helps the formation?

Exclusives balanced?

Are you moving through useful exclusive-equipment breakpoints across all five rather than maxing one item first?

Battle tested?

If two layouts are close, test the same target with the same troops. Change one thing at a time and compare the result.

Remember: your account power can look impressive while your fighting power stays mediocre. Build the same five in controlled rounds, verify hero order with before/after formation power, and confirm close calls in battle. The goal is to make the same five heroes brutally efficient together.