Loki, the Unseen

Deathtouch, Double-Strike, Lifelink
When this creature enters the battlefield, gain
control of target permanent and untap it.
Creatures you control get +1/+0 and deathtouch.
{3}{u}{b},{t}: Exile target creature or Planeswalker.
Pay 2 life and {b/g}: Put a +0/+2 counter on
target creature.