Brechon, Prismatic Bend

Trample
Brechon, Prismatic Behemoth has power and
toughness equal to the number of instant
and sorcery cards in your graveyard.
When Brechon, Prismatic Behemoth enters
the battlefield, you may search your library
for an instant or sorcery card with mana
value X or less and play it without paying its
mana cost, then shuffle. It gains cascade.