Furo, The Molten Coil

Double strike, Fury X (Discard X cards.)
Whenever this creature becomes furious, if one
card was discarded this way, exile the top card of
your library. You may play that card until the end
of your next turn. If two cards were discarded this
way, Furo deals 4 damage divided as you choose
among any number of target creatures. If three or
more cards were discarded this way, creatures you
control get +X/+X until end of turn, where X is
the number of cards you have discarded this turn.