Frostbringer vs Sigmund the Highshield

Overall comparison

HERO	Fraction	Element	Type	Rarity	Aura
Frostbringer	The Sacred Order	Magic	Support	Epic	Defence 33% Place: Dungeons
Sigmund the Highshield	Banner Lords	Magic	Defence	Legendary	Defence 40% Place: Doom tower

HERO	LVL	STARS	HP	ATK	DEF	SPD	C.RATE	C.DMG	RESIST	ACC
Frostbringer	60	6	20310	870	1079	110	15	50	30	0
Sigmund the Highshield	60	6	20640 +330	848 -22	1354 +275	97 -13	15	50	50 +20	10 +10

Frostbringer	Cones of Cold Formula: 2*ATK Attacks 2 times at random. Has a 30% chance of placing a 100% [Heal Reduction] debuff for 2 turns. Heal Reduction 100%	Snow Flurry Formula: 2.2*ATK Attacks 3 times at random. Each hit has a 75% chance of placing a 60% [Decrease DEF] debuff for 2 turns. Cooldown: 4 Decrease DEF 60%	Arctic Winds Places a 30% [Increase SPD] and a 50% [Increase ATK] buff on all allies for 2 turns. Cooldown: 5 Increase ATK 50% Increase SPD 30%	-
Sigmund the Highshield	Fairer Fight Formula: 3.75*DEF Attacks 1 enemy. Removes any [Shield] buffs. Also has a 50% chance of removing one random buff. Has a 75% chance instead when attacking Bosses.	Battlefield Beacon Formula: 2*DEF Attacks all enemies 2 times. Each hit has a 50% chance of placing a [Provoke] debuff for 1 turn, and a 75% chance of placing a 50% [Decrease ATK] debuff for 2 turns. Cooldown: 4 Provoke Decrease ATK 50%	Shield of the Realm Places a [Shield] buff on all allies for 2 turns equal to 30% of this Champion's MAX HP. Also places a 25% [Strengthen] buff on all allies for 2 turns. Cooldown: 5 Shield Strengthen	Equitable [P] Whenever this Champion is attacked, has a 20% chance of decreasing the duration of all buffs on the attacker by 1 turn. Has a 40% chance instead when attacked by a Boss.