Shamrock vs Valla

Overall comparison

HERO	Fraction	Element	Type	Rarity
Shamrock	Ogryn Tribes	Spirit	Support	Legendary
Valla	Barbarians	Spirit	Defence	Epic

Stats comparison

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Shamrock	60	6	20805	1002	1189	111	15	50	40	0
Valla	60	6	16845 -3960	771 -231	1409 +220	99 -12	15	60 +10	30 -10	0

Skills comparison

Shamrock	Luck Swap Formula: 2*ATK Formula: 0 Attacks 1 enemy 2 times. Each hit has a 60% chance of removing 1 random buff from the target. If a buff is removed, has a 35% chance of stealing that buff.	Lucky Charms Places a 60% [Increase DEF] buff on all allies for 2 turns. Places a 30% [Increase SPD] buff on all allies with more than 50% HP for 2 turns. Also has a 50% chance of placing a 30% [Increase C. RATE] buff on those allies for 2 turns. Places a [Revive On Death] buff on all allies with less than 50% HP for 2 turns. Also has a 50% chance of placing a 15% [Continuous Heal] buff on those allies for 2 turns. Cooldown: 4 Revive On Death Block Debuffs Continuous Heal 15% Increase DEF 60% Increase SPD 30% Increase C. RATE 30%	Uncatchable Formula: 0.15MAX_STAMINA Formula: 0.15MAX_STAMINA Places a 30% [Decrease SPD] debuff on all enemies for 2 turns. Decreases the Turn Meter of all enemies by 15%. Fills the Turn Meters of all allies by 15% if any enemy's Turn Meter is below 50%. Cooldown: 5 Decrease SPD 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.