How can you create a combo with Hogaak, Arisen Necropolis, Infested Thrinax, Altar of Dementia?
user
[START OF COMBO]This combo can be formed with Hogaak, Arisen Necropolis, Infested Thrinax, Altar of Dementia

Color identity: BG
Mana cost: {3}{B}{G}
Steps:
  1. Cast Infested Thrinax by paying {3}{B}{G}.
  2. When Infested Thrinax enters the battlefield, it triggers, causing you to create a number of 1/1 Saproling creature tokens when a nontoken creature you control dies.
  3. Activate Altar of Dementia by sacrificing Hogaak.
  4. When Hogaak dies, Infested Thrinax triggers, creating eight 1/1 Saproling creature tokens.
  5. Resolve the Altar of Dementia ability, causing target player to mill cards equal to Hogaak's power.
  6. Cast Hogaak from your graveyard by tapping seven Saprolings.
  7. Repeat from step 3.[END OF COMBO STEPS]

Result:
  - Infinite leaves the battlefield
  - Infinite enters the battlefield
  - Infinite sacrifice triggers
  - Infinite death triggers
  - Infinite mill
  - Infinite self-mill
  - Infinite storm count
  - Infinite creature tokens[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - Hogaak, Arisen Necropolis must be on the battlefield
  - Infested Thrinax must be in your hand
  - Altar of Dementia must be on the battlefield
[END OF COMBO PREREQUISITES]
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