Metalshaper vs Rock Breaker

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Metalshaper	Lizardmen	Spirit	Support	Rare	Defence 15% 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
Metalshaper	60	6	16350	859	1079	90	15	57	30	0
Rock Breaker	60	6	18495 +2145	716 -143	1354 +275	91 +1	15	50 -7	75 +45	0

Metalshaper	Transference Bolt Formula: 4*DEF Attacks 1 enemy. Has a 30% chance of stealing 1 random buff from the target.	Fortified Steel Places a [Shield] buff on all allies for 2 turns. The value of the [Shield] is proportional to this Champion Level. Cooldown: 3 Shield	Rescue Formula: 0.2*HP Removes all debuffs from the ally with the lowest HP, then heals them by 20% of this Champion's MAX HP. Also places a 25% [Increase DEF] buff on that ally for 3 turns. Cooldown: 5 Increase DEF 30%
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.