You control up to seven lands that can tap to produce at least ({3} magic symbol) ({B} magic symbol) ({B} magic symbol) .
Steps
Activate up to seven lands you control by tapping them, adding at least ({3} magic symbol) ({B} magic symbol) ({B} magic symbol) .
Activate
Goblin Bombardment twice by sacrificing
Archaeomancer and
Great Whale, dealing 1 damage to any target.
Cast
Living Death by paying ({3} magic symbol) ({B} magic symbol) ({B} magic symbol) , causing each player to exile all creature cards from their graveyard, sacrifice all creatures they control, then return all cards exiled this way to the battlefield.
Archaeomancer and
Great Whale enter the battlefield, triggering their abilities.
Resolve the
Archaeomancer trigger, returning
Living Death from your graveyard to your hand.
Resolve the
Great Whale trigger, untapping up to seven lands you control.
Repeat.
If the seven lands can tap to produce at least ({4} magic symbol) ({B} magic symbol) ({B} magic symbol) , this combo nets infinite mana.