Best Units & Team Building Guide
Which units to invest in, how mutations change picks, and team synergy beyond raw power.
Quick answer
Mighty Orc is the safest long-term DPS pick. Grave Warlock and Cursed Acolyte need two population slots but scale into late game. Lava Imp adds burn AoE. Always compare mutations before keeping duplicates — a Cursed lower-rarity unit can out-DPS a normal higher-rarity copy.
Video source
Unit names and roles cross-check our Units and Tier List pages. Stats change with updates — verify in-game before spending Fusion Shards.
Radex Tips — BEST UNITS GUIDE in BE THE FINAL BOSS RobloxBuild your roster
- 1
Invest in Mighty Orc first
Mighty Orc stays useful from mid-game through late waves. It is the safest unit to upgrade with materials and Fusion Shards.

Mighty Orc is the safest long-term investment for most rosters. - 2
Add Grave Warlock for mythic DPS
Grave Warlock costs two deployment slots. Unlock Population nodes in the skill tree before slotting it.

Grave Warlock costs two slots but pays back with sustained wave damage. - 3
Slot Cursed Acolyte for support passives
Two-slot supports bring passive utility. Plan population before adding multiple 2-slot units.

Two-slot supports like Cursed Acolyte need Population upgrades from the skill tree. - 4
Use Lava Imp for burn AoE
Lava Imp ignites groups of heroes. Pair burn damage with other area-damage minions for smoother wave clears.

Lava Imp adds AoE burn — pair it with other area-damage minions. - 5
Compare mutations on duplicates
Before keeping a new roll, check the mutation tag. A Cursed Bone Grunt at the same level doubles ATK versus the normal version.

Always compare mutations before keeping a duplicate — Cursed can beat a higher rarity base unit.