With all cards in play, cast a creature.
Essence Warden's ability will trigger, and you gain 1 life.
Ageless Entity's ability will trigger, gaining a +1/+1 counter
Animation Module's ability will trigger, Pay 1 mana and put a Servo token.
Sacrifice the Servo Token with Ashnod's Altar.
Repeat the process for infinite mana, infinite tokens, infinite power, and infinite life.