Crypt Witch vs Rock Breaker

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Crypt Witch	Knight Revenant	Magic	Attack	Epic	Speed 20% Place: Crypts
Rock Breaker	Dwarves	Spirit	Defence	Epic	Defence 30% Place: Arena

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Crypt Witch	60	6	14865	1421	892	98	15	60	30	0
Rock Breaker	60	6	18495 +3630	716 -705	1354 +462	91 -7	15	50 -10	75 +45	0

Crypt Witch	Fetid Steel Formula: 3.4ATK Formula: DMG_MUL0.3 Attacks 1 enemy. Deals 30% more damage if the target has any buffs. Will ignore [Shield] and [Block Damage] buffs.	Dismantle Formula: 2.2*ATK Formula: -0.15 Attacks 3 times at random. Each hit has a 75% chance of placing a 60% [Decrease DEF] debuff for 2 turns. Each hit will also ignore 15% of the target's DEF. Cooldown: 4 Decrease DEF 60%	Not So Fast Formula: 4.5*ATK Formula: -0.5 Attacks 1 enemy. Will ignore 50% of the target's DEF if this Champion has higher SPD than the target. Cooldown: 4
Rock Breaker	Whirling Hammers Formula: 2.5DEF Formula: 0.04SKILL_USED_CURRENT_ROUND*B_DEF Formula: 0 Attacks 1 enemy. Increases this Champion's DEF by 4% each time this Skill is used. Stacks up to 20%.	Chest Thump Has a 75% chance of placing a [Provoke] debuff on all enemies for 1 turn. Places a [Counterattack] buff on this Champion for 2 turns. Cooldown: 4 Counterattack Provoke	Iron Hide [P] Formula: -0.5*DMG_MUL Has a 25% chance of decreasing damage inflicted on this Champion by 50% each time this Champion is attacked.