Thistle Wurm

Trample, Haste, Reach
{b}{b}: Thistle Wurm gains deathtouch until the
end of turn.
Behemoth cycling {2}{b/g}{b/g}: (Discard this card:
Search your library for a creature card with mana
value equal to Thistle Wurm, reveal it, and put it
into your hand. Then shuffle your library.)
It's behind you! RUN!