Katsuki Bakugo

130% boost to Atk, max HP, enormously boosts Fire elemental damage, raises Atk parameter limits to 130000, hugely boosts critical damage & 15% damage reduction from Fire, Earth, Light, Dark types

20% boost to all parameters when All Might is in the same Squad, greatly boosts Atk relative to remaining HP and greatly boosts Fire elemental damage when Grenadier Bracers is equipped, 50% boost to Atk and slightly boosts critical hit rate for all allies, greatly boosts critical damage & 50% additional damage reduction

BB

Explosive Speed Turbo EX

1 DC27

14 combo powerful Fire attack on all foes (damage relative to remaining HP, enormously boosts own critical hit rate), enormously boosts own Atk relative to max HP for 3 turns, enormously boosts BB Atk for 3 turns, probability of activating BB/SBB/UBB twice for 1 turn, considerably boosts Atk, Def, Rec and enormously boosts critical hit rate of Fire types for 3 turns & boosts own max HP

SBB

Stun Grenade EX

1 DC30

16 combo massive Fire attack on all foes (damage relative to remaining HP, enormously boosts own critical hit rate), 9 combo Fire attack on single foe (consecutive uses boosts damage, enormously boosts own critical hit rate), enormously boosts BB Atk for 3 turns, enormously boosts Fire elemental damage for 3 turns, probability of activating BB/SBB/UBB twice for 1 turn & greatly boosts critical damage for 3 turns

UBB

Howitzer Impact EX

1 DC33

21 combo massive Fire attack on all foes (damage relative to remaining HP, enormously boosts own critical hit rate), 4 combo massive Fire attack on single foe (25% active Pierce to Fire, Earth types), activates BB/SBB/UBB twice for 1 turn, enormously boosts Fire elemental damage for 3 turns, enormously boosts Atk, Def, Rec and critical hit rate for 3 turns & enormously boosts max HP