As Abigail is one of the lesser used heroes, I think that she could use an update/rework and/or an epic weapon. Here are my ideas:
Rebel yell: buff attack for self and allies by 25% on crit, for Abigail it stacks indefinitely and doesn’t expire
Warrior’s fury: (replaces frenzy) buff allied warriors crit chance by 10/15/20 percent (increases every ascension)
Warrior’s code: (final ascension) has a chance to revenge an attack on any allied warrior, guaranteed if it was a crit.
Staggering blows: (replaces scull cracker) 3 melee attacks on target, has a chance to cripple(lowers attack and defence), if cripple applies while target is already crippled, tha damage is boosted by 50% and it can't be healed
Execute: (replaces rampage) deals massive damage to a single target. Damage increases the lower targets health is(1.5% for 1% missing health, max 200% damage). Gain 10% of targets attack, defense and skill on kill for 3 turns.
Raging barbarian: cleanse all debuffs on abigail, deal 3x damage, has increased chance to crit. Grants 3 stacks of rebel yells buff before attack and another 3 if crits. Heal all warrior allies on kill for 100 hp per rebel stack.
Passively buffs defense/health attack and crit