Hitmonlee

Absorb 1 (If a source would deal damage to this
creature, prevent 1 of that damage.)
Hitmonlee has first strike as long as there are no
Artifact attached to it.
{p/r}{p/w}: Reveal the top card of your library. If it's a
permanent card, Hitmonlee gets +X/+0 and
gains flying and trample until end of turn, where
X is half of its power rounded down. Otherwise it
gets -X/-Y until end of turn, where Y is half of
its toughness rounded down. Put the revealed
card at the bottom of your library.