Ariphine, The Swanmay

{t}: Do 2 damage to target attacking or blocking creature.
{1}: Changes Ariphine into a 2/2 Swan with
Flying and Lifelink, Ariphine loses her tap ability
while in Swan form. You may cast this ability
again to change Ariphine back to her human
form. If Ariphine is targeted by a spell and uses
this ability counter that spell.