Matabi, The 2-Tails Biju

Haste, Persist
Whenever Matabi The 2-Tails Biju attacks,
it gains +1/+1 until the end of turn for
each card in the defending players hand.
{u/r}{u/r}, {t}: Matabi The 2-Tails Biju deals
damage to target creature or player equal
to the number of cards in your hand. If a
creature would die this way, exile it
instead.