Azathoth Who Lay Dreaming

Defender, Reach, Indestructible, Hexproof, This spell can't be countered, This creature can't be sacrificed
Whenever a creature you control dies put a -1 -1 counter on Azathoth, you gain 3 life, and draw a card.
When Azathoth dies destroy all permanents target player controls and they discard every card in their hand.
At the beginning of your upkeep you may create a 1/1 Cultist with deathtouch and {t} may sacrifice this creature to add {1} to your mana pool