Herald vs Dark Kael

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Herald	Knight Revenant	Spirit	Support	Uncommon	-
Dark Kael	Dark Elves	Magic	Attack	Epic	-

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Herald	60	6	16845	782	848	99	15	50	30	0
Dark Kael	60	6	14205 -2640	1343 +561	1013 +165	96 -3	15	50	30	15 +15

Herald	Doombolt Formula: 3.3*ATK Attacks 1 enemy. Has a 15% chance of placing a 15% [Decrease SPD] debuff for 1 turn. Decrease SPD 15%	Unholy Grace Places a 30% [Increase C. RATE] buff on all allies for 2 turns. Cooldown: 4 Increase C. RATE 30%	-	-
Dark Kael	Weaver of Woes Formula: 1.35*ATK Attacks 1 enemy 3 times. Each hit has a 25% chance to instantly activate one tick of 2 [Poison] debuffs or 1 [Poison] debuff and 1 [HP Burn] debuffs.	Binding Darkness Formula: 4*ATK Attacks all enemies. Has a 75% chance of placing a 50% [Decrease ATK] debuff for 2 turns. Each critical hit also has a 75% chance of increasing the duration of all debuffs on the target by 1 turn. Cooldown: 4 Decrease ATK 50%	Reality Acid Has a 75% chance of placing three 5% [Poison] debuffs and a 25% [Poison Sensitivity] debuff on the target for 2 turns. Cooldown: 4 Poison Sensitivity Poison 5%	Delerium [P] Formula: -0.15 Decreases the C. RATE of enemies under 2 or more [Poison] debuffs by 15%. If there are multiple Champions on the team with this skill, only one will activate. This skill will not activate on duplicate copies of this Champion, if this particular Champion is dead.