Gogiga Gagagigo

As an additional cost to casting Gogiga Gagagigo, sacrifice or discard a card named Gagagigo.
Vigilance, Trample, Menace, Deathtouch, Haste
Gogiga Gagagigo gains a +1/+1 counter each
time it attacks.
Limited 1 (A deck can only contain up to one card
named Gogiga Gagagigo.)