Hollow vs Ruella

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Hollow	Undead Hordes	Void	Attack	Rare	Attack 21% Place: Dungeons
Ruella	Sylvan Watchers	Spirit	Attack	Epic	Accuracy 40 Place: Dungeons

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Hollow	60	6	13050	1299	859	89	15	57	30	0
Ruella	60	6	15855 +2805	1376 +77	870 +11	112 +23	15	50 -7	30	0

Hollow	Bleed Away Formula: 3.4*ATK Attacks 1 enemy. Has a 10% chance of placing a 2.5% [Poison] debuff for 2 turns. Poison 2.5%	Creeping Dark Formula: 1.2ATK Formula: 0.05MAX_STAMINA Formula: -1*CHANGED_STAMINA_AMOUNT Attacks 1 enemy 4 times. Each hit decreases the target's Turn Meter and fills this Champion's Turn Meter by 5%. Cooldown: 3	Aether Strike Formula: 4.5*ATK Attacks 1 enemy. Will ignore 25% of the target's DEF. Cooldown: 5
Ruella	Harassment Volley Formula: 1.5ATK Formula: 0.05MAX_STAMINA Formula: -CHANGED_STAMINA_AMOUNT Attacks 1 enemy 3 times. Each critical hit has an 80% chance of stealing 5% of the target’s Turn Meter.	No Respite Formula: 2.3*ATK Attacks 1 enemy 3 times. Each hit has a 50% chance of placing a 60% [Decrease DEF] debuff, a 25% [Weaken] debuff and a 30% [Decrease SPD] debuff for 2 turns. Cooldown: 4 Weaken 25% Decrease SPD 30% Decrease DEF 60%	Timed Offensive Formula: 0.2*MAX_STAMINA Fills the Turn Meters of all allies by 20% and places a 30% [Increase C. RATE] buff on all allies for 2 turns. Cooldown: 6 Increase C. RATE 30%