How can you create a combo with Kenrith, the Returned King, Great Whale, Altar of Dementia?
user
[START OF COMBO]This combo can be formed with Kenrith, the Returned King, Great Whale, Altar of Dementia

Color identity: WUBRG
Mana cost: {5}{U}{U}
Steps:
  1. Cast Great Whale.
  2. When Great Whale enters the battlefield, untap seven lands.
  3. Sacrifice Great Whale to Altar of Dementia to mill target player 5.
  4. Activate Kenrith's last ability, returning Great Whale from your graveyard to the battlefield.
  5. Tap 7 lands you control for at least {4}{B}.
  6. Repeat steps 2 to 5.[END OF COMBO STEPS]

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

Other prerequisites:
  - Kenrith, the Returned King must be on the battlefield
  - Great Whale must be in your hand
  - Altar of Dementia must be on the battlefield
  - Seven or less lands that can tap for {4}{B}.
[END OF COMBO PREREQUISITES]
assistant