Headless Rider Combos
Ghouls' Night Out + Phyrexian Altar + Headless Rider
Combo result
Infinite creature tokens. Infinite colored mana. Infinite ETB. Infinite LTB. Infinite death triggers. Infinite sacrifice triggers. Infinite storm count. Infinite magecraft triggers.
Prerequisites
Archaeomancer in your graveyard. All other permanents on the battlefield. At least two of your opponents have a creature card in their graveyard. {B}{B} available.