How can you create a combo with Sek'Kuar, Deathkeeper, Cryptolith Rite, Nether Traitor, Altar of Dementia?
user
[START OF COMBO]This combo can be formed with Sek'Kuar, Deathkeeper, Cryptolith Rite, Nether Traitor, Altar of Dementia

Color identity: BRG
Mana cost: 
Steps:
  1. Activate Altar of Dementia by sacrificing Nether Traitor.
  2. Sek'Kuar triggers, creating a 3/1 Graveborn creature token creature with haste.
  3. Resolve the Altar of Dementia ability, causing target player to mill a card.
  4. Activate the Graveborn token using the ability from Cryptolith Rite by tapping it, adding {B}.
  5. Activate Altar of Dementia by sacrificing the Graveborn token.
  6. Nether Traitor triggers, causing you to pay {B} to return it from your graveyard to the battlefield.
  7. Resolve the Altar of Dementia ability, causing target player to mill three cards.
  8. Activate Nether Traitor using the ability from Cryptolith Rite by tapping it, adding one mana of any color.
  9. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite colored mana
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite mill
  - Infinite sacrifice triggers
  - Infinite self-mill[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
[END OF COMBO PREREQUISITES]
assistant