Relisix, Supreme Serpent

Eminence - Whenever a snake you control enters the battlefield or is put into the graveyard, as long as Relisix, Supreme Serpent is in the command zone or on the battlefield, you gain 1 life.
Outher snakes you control have Double Strike.
Wheneaver 5 or more snakes you control attack create a 1/1 Black and Green snake creature token with Deathtouch and Poisonous 1.