Possessed by Evil is the 1st stage of Prelude to Ruin.
Evil Emperor Cat's swing does four things at once, and the guaranteed four-second Curse is the one that matters — it switches your units' abilities off.
- The plan is to never let him attack: chain-knockback him with a high-level Bahamut Cat and support.
- Done properly, the stage ends before Oldhorn even walks on.
- Keep the Cat Cannon in reserve for the occasional interrupt.
Evil Emperor Cat is Relic. Anti-Relic units take less damage and deal more.
ESOTERIC URIL A Esoteric Uril: Strong against Relic, Aku (Deals 1.5x damage, only takes 1/2 damage) Also fits “Clear the crowd.” 
FUTURE CAT B Takes greatly reduced damage from Relic. 
ULTRA DELINQUENT CAT A True Form also targets and freezes Relic. Also fits “Clear the crowd.” 
ULTIMATE CATMAN S Massive Damage vs Relic (True). Also fits “Clear the crowd.” 
MASKED GRANDMASTER CAT B Masked Grandmaster Cat: Strong against Relic enemies (Deals 1.5x damage, only takes 1/2 damage) Also fits “Clear the crowd.” Evil Emperor Cat reaches 520 range. Units that out-range it can chip safely without taking hits.
PARAGON CAT C Range 600 — fires from beyond its 520. 
CYBERPUNK CAT A Range 1200 — fires from beyond its 520. Also fits “Clear the crowd.” 
LUFALAN PASALAN S Range 720 — fires from beyond its 520. Also fits “Burst the boss down.” 
SNIPER THE DEADEYE A Range 1200 — fires from beyond its 520. 
KING OF DESTINY PHONOA S Range 600 — fires from beyond its 520. Also fits “Burst the boss down.” Evil Emperor Cat has a deep HP pool (1,200,000+ even before stage magnification). Heavy single-target burst shortens the fight.
AWAKENED BAHAMUT CAT S Huge multi-hit burst — a story-unlock powerhouse that deletes tanky enemies. 
DIVINE KALISA S Big Massive-Damage Area hits. Also fits “Clear the crowd.” 
GAIA THE SUPREME S Long-Distance multi-hit with Insane Damage — a generalist wall-cracker. 
CORRUPTED MONEKO A Big crit burst against tanky/Metal targets. 
LASVOSS REBORN S Huge Area hits with a 30% Savage Blow. Also fits “Clear the crowd.” 6 enemy types stack up here. Area attackers hit the whole push at once instead of one unit at a time.
ESOTERIC URIL A Area attacks hit everything in range. Also fits “Counter Relic.” 
CYBORG CAT S Hits whole crowds, and is Weaken-immune so it keeps firing through Weaken stages. ULTRA DELINQUENT CAT A Area Multi-Hit clears grouped enemies. Also fits “Counter Relic.” 
ORBITAL ANNIHILATOR RAGNAROK S Long-range (Omni Strike in True) Area clears groups front and back. Also fits “Burst the boss down.” 
PROFESSOR ABYSS A Area attacks hit everything in range. WIKI PICK = listed on the stage's Battle Cats Wiki page; COMMUNITY = found by title, channel and date. Neither is verified by Claws' Den. Nothing loads from YouTube until you press play. Find more on YouTube ↗
The castle you destroy to clear the stage.