How can you create a combo with Olivia, Crimson Bride, Port Razer, Altar of Dementia?
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[START OF COMBO]This combo can be formed with Olivia, Crimson Bride, Port Razer, Altar of Dementia

Color identity: BR
Mana cost: 
Steps:
  1. Declare Olivia as an attacker, attacking an opponent unable to block your creatures.
  2. Olivia triggers, returning Port Razer from your graveyard to the battlefield tapped and attacking that opponent.
  3. Deal combat damage with Port Razer, triggering its ability, untapping all creatures you control and getting an additional combat phase after this one.
  4. Activate Altar of Dementia by sacrificing Port Razer, causing target player to mill cards equal to Port Razer's power.
  5. Repeat.[END OF COMBO STEPS]

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

Other prerequisites:
  - Olivia, Crimson Bride must be on the battlefield
  - Port Razer must be in the graveyard
  - Altar of Dementia must be on the battlefield
  - Olivia does not have summoning sickness.
  - An opponent is unable to block your creatures.
[END OF COMBO PREREQUISITES]
assistant