Clear Wing Synchro Dragon

convoke (Each creature you tap while casting this
spell pays for its mana cost)
Ward— Destroy target creature ( Whenever this
creature becomes the target of a creature ability
destroy that creature)
If this card destroys a creature, counter that spell and
this card gains +1/+0 equal to that creatures power
and this card gains +0/+1 equal to that creature's toughness
{t} counter target creature spell with mana value {4} or higher