Channeler vs Witness

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Channeler	Skinwalkers	Spirit	Support	Rare	Resist 30 Place: Crypts
Witness	The Sacred Order	Magic	Support	Rare	Resist 30 Place: Crypts

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Channeler	60	6	17175	881	1002	103	15	50	30	0
Witness	60	6	14865 -2310	1134 +253	903 -99	103	15	50	30	0

Channeler	Rage of Ancients Formula: 4.7*ATK Attacks 1 enemy. Has a 25% chance of placing a 50% [Heal Reduction] debuff for 1 turn. Heal Reduction 50%	Halt! Formula: 6.4*ATK Attacks 1 enemy. Has a 50% chance of placing a [Stun] debuff for 1 turn. Cooldown: 4 Stun	Agility Formula: 0.15*MAX_STAMINA Places a 30% [Increase SPD] buff on all allies for 2 turns. Fills the Turn Meter of all allies by 15%. Cooldown: 6 Increase SPD 30%
Witness	Long Shot Formula: 3.4ATK Formula: 3.4ATK Attacks 1 enemy. Has a 15% chance of placing an extra hit.	Support Fire Formula: 4.3*ATK Attacks 1 enemy. Places a 30% [Increase DEF] buff on the ally with the lowest HP for 3 turns. Cooldown: 4 Increase DEF 30%	Prayer of Comfort Places a [Block Debuffs] buff on all allies for 1 turn. Places a [Shield] buff equal to 30% of this Champion's MAX HP on all allies for 2 turns. Cooldown: 6 Shield Block Debuffs