Ithex, the Lunatic

Flash, First Strike, Haste
When Ithex comes into play, destroy target
creature.
{t}: Destroy target creature with thoughtness
equal or less than Ithex power.
{1}: Ithex gains +1/+0 until the end of turn.
When Ithex is put into graveyard from the battlefield, return it to its owner library.