Curze, Temporal Mastermind

Deathtouch, double strike.
Whenever Curze, Temporal Mastermind deals combat damage to a creature or player, it connives.

{1}{u}, Remove a +1/+1 counter from Curze, Temporal Mastermind: Untap it. If it's the first combat phase of the turn, there is an additional combat phase after this phase.