Kalvalax vs Preserver

Overall comparison

HERO	Fraction	Element	Type	Rarity
Kalvalax	Knight Revenant	Spirit	Attack	Legendary
Preserver	Banner Lords	Force	Defence	Rare

Stats comparison

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Kalvalax	60	6	12720	1663	1068	99	15	63	30	10
Preserver	60	6	16350 +3630	771 -892	1167 +99	102 +3	15	50 -13	40 +10	0 -10

Skills comparison

Kalvalax	Oozing Greatsword Formula: 3.5ATK Formula: EffectsAppliedOnRelationTargetCountOfKind(ContinuousDamage_KindId)0.025*HP Attacks 1 enemy. Has a 40% chance of increasing the duration of all [Poison] debuffs on the target by 1 turn. Heals this Champion by 2.5% of their MAX HP for each [Poison] debuff on the target.	Corruption Locus Formula: 2*ATK Formula: EffectsAppliedOnRelationTargetCountOfKind(ContinuousDamage_KindId) Attacks 1 enemy. Places an extra hit for each [Poison] debuff on the target (up to 3 extra hits). Cooldown: 3	Storm of Vitriol Formula: (3.5ATK)+(EffectsAppliedOnTargetCountOfKind(ContinuousDamage_KindId)0.01*TRG_HP) Attacks all enemies. Damage increases according to the number of [Poison] debuffs on each target. Cooldown: 4	Pestilence [P] Places four 5% [Poison] debuffs on all enemies for 2 turns at the start of each round. Has a 50% chance of placing a 5% [Poison] debuff on all enemies for 1 turn at the start of each turn. Whenever an enemy places a [Poison] debuff on this Champion, instantly removes it and replaces it with a 15% [Continuous Heal] buff for 2 turns instead. Cooldown: 1 Continuous Heal 15% Poison 5%
Preserver	Exhausting Assault Formula: 5.5*ATK Attacks 1 enemy 2 times. Has a 15% chance of placing a 30% [Decrease SPD] debuff for 2 turns. Decrease SPD 30%	Recuperate Places a 7.5% [Continuous Heal] buff and a [Shield] buff on this Champion for 2 turns. The value of the [Shield] is proportional to this Champion's MAX HP. Cooldown: 4 Shield Continuous Heal 7.5%	Ice Blow Formula: 6.7*ATK Attacks 1 enemy. Has a 75% chance of placing a [Freeze] debuff for 1 turn. Cooldown: 5 Freeze	-