Rainbow Dash

Flying, Trample
On your turn, for every member of the mane
six you control, Rainbow Dash gets +1/+1 and
Menace until end of turn
{w}{u}{3}: Search your library and reveal a card
named, "Twenty Percent Cooler" and put it
into your hand
As long as you control "Twenty Percent Cooler,"
all spells cost 1 less to cast