Functionally; Bunny Fang possesses four attributes. It is effective against Cavalry units, likely in reference to the Beastbane skill; as well as providing a passive Speed boost. If Yarne is below 75% health; he also gains an effect similar to Special Spiral; reducing Special cooldown by 2 stages after each combat.
The Bunny Fang also provides the standard beast transformation effect of Attack +2 if she starts the turn adjacent to beast or dragon allies; or alone, with the cavalry effect of countering follow-up attacks and inflicting an in combat Attack & Defense debuff when she initiates.
Grants Spd+3. Effective against cavalry foes. After combat, if unit's HP ≤ 75%, grants Special cooldown count-2. Effect:【Beast (Cavalry)】
【Beast (Cavalry)】 At start of turn, if unit is adjacent to only beast or dragon allies or if unit is not adjacent to any ally, unit transforms (otherwise, unit reverts). If unit transforms, grants Atk+2, and if unit initiates combat, inflicts Atk/Def-4 on foe during combat and foe cannot make a follow-up attack.