Serpendous

Trample, Lifelink
Privileged 3 (if a Privileged creature would die, you
may choose to exile a nonland permanent you control
of converted mana cost equal to or greater than the
number associated with this ability and return this
creature to the battlefield from your graveyard).
When Serpendous enters the battlefield from your graveyard, you gain 5 life and each opponent loses
5 life, then Serpendous loses all abilities
until end of turn, and sacrifice it.