Grumbler vs Valla

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Grumbler	Dwarves	Magic	HP	Rare	HP 25% Place: Dungeons
Valla	Barbarians	Spirit	Defence	Epic	Resist 45 Place: Arena

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Grumbler	60	6	19485	804	925	95	15	50	55	0
Valla	60	6	16845 -2640	771 -33	1409 +484	99 +4	15	60 +10	30 -25	0

Grumbler	Angry Mallet Formula: 0.1HP+0.1DEF Attacks 1 enemy. Places a [Shield] buff on this Champion equal to 10% of their MAX HP for 2 turns. Shield	No Coming Back Formula: 0.2HP+1.5DEF Attacks 1 enemy. Places a 50% [Heal Reduction] debuff for 2 turns. Cooldown: 3 Heal Reduction 50%	Shoulder the Weight Places a 25% [Ally Protection] buff on all allies for 2 turns. Places a 30% [Increase DEF] buff on this Champion for 2 turns. Cooldown: 5 Ally Protection 25% Increase DEF 30%	-
Valla	Piercing Blade Formula: 1.55DEF Formula: 0.15DMG_MUL Attacks 1 enemy 2 times. Increases the inflicted damage by 15% if the target is under a [Shield] buff.	Crush The Wall Formula: 3.8*DEF Removes all [Shield] buffs on all enemies, then attacks all enemies. Has a 30% chance of placing a 60% [Decrease DEF] debuff on all enemies for 2 turns. Cooldown: 4 Decrease DEF 60%	Fortified Core Formula: 0.5*MAX_STAMINA Places a [Shield] buff on this Champion for 3 turns equal to 20% of their MAX HP. Also places a 60% [Increase DEF] buff on this Champion for 3 turns and fills this Champion’s Turn Meter by 50%. Cooldown: 4 Shield Increase DEF 60%	Resolute Defense [P] Formula: -0.15*DMG_MUL Decreases the damage received by this Champion by 15% while under a [Shield] buff.