Sen L’éternal, the Undying

Haste, Deathtouch
Undying( When this permanent is put into a graveyard from the battlefield, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it)
{t} Destroy target no land permanent, it can’t be regenerated.
{2}{b}{r} Sen gains double strike until end of turn.