Entei, Soul of Elements

Protection from white and from black
Whenever you cast a creature spell, put
a +1/+1 counter on Entei, Soul of Elements.
Creature spells you cast cost {1} less to cast
for each +1/+1 counter on Entei.
Pokedex Entry: Volcanoes erupt when
it barks. Unable to restrain its extreme
power, it races headlong around the land.