Who Counters Rimuru in Epic Seven?

Tori, Notos, Swift Flagbearer Sigret and other hard counters counter Rimuru. His whole engine depends on buffs existing to copy and spread; dispels, buff steals, and effects that shorten buff duration strip away both the buffs he hands his team and the team-wide buff count that powers his finisher.

Buff removal and buff theft: His whole engine depends on buffs existing to copy and spread; dispels, buff steals, and effects that shorten buff duration strip away both the buffs he hands his team and the team-wide buff count that powers his finisher. Immunity setters: Enemies under immunity can't be reliably pressured by debuff-side play, and his copy-and-spread plan loses bite against a team that simply blocks effects from sticking. Pure burst before he ramps: His finisher sits on a 5-turn cooldown and only hits its 10,000 fixed-damage ceiling once the team is buff-stacked, so a fast comp that opens with a hard kill can take him down before his buff engine and big nuke come online.

Buff-stacked enemy carries and supports: His passive copies up to two buffs off whatever he hits and spreads them to his own team, so the more an enemy stacks attack, crit, or defensive buffs, the more value he steals back; his finisher then hits harder the more buffs his own side is carrying. Defensive walls leaning on barriers and damage reduction: His finisher deals 5,000 to 10,000 fixed bonus damage on top of the normal hit, which slices straight through shields and percent damage-reduction setups that would otherwise blunt a normal nuke. Dodge and evasion bruisers: His core attacks cannot miss, so heroes relying on evasion or miss chance to survive can't dodge his counters or his finisher. Off-element tanks his color should struggle into: His black flame is unaffected by elemental disadvantage, so even Fire-side targets that would normally shrug off an Earth attacker take his full damage.