Rahyn, Traveler of Worlds

{g}{g}: Rahyn, Traveler of Worlds becomes a
creature until end of turn. Then, you may put
your choice of a flying, first strike, deathtouch, hexproof, lifelink, menace, trample, or vigilance counter on it.
{g}{g}: Exile Rahyn, Traveler of Worlds, then
return it to the battlefield.
Rayhn is the trickiest of all creatures, and the
hardest to catch.