Haste (This creature can attack, and as soon as it comes under your control.)
The Howling Abomination has
trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.) as long as you've cast three or more spells this turn.
Whenever The Howling Abomination becomes the target of a spell, he gets +2/+2 until end of turn and deals 2 damage to each opponent.