Mana Geyser by paying ({3} magic symbol) ({R} magic symbol) ({R} magic symbol) , adding ({R} magic symbol) for each tapped land your opponents control.
Cast
Devastating Onslaught by paying ({4} magic symbol) ({R} magic symbol) , creating two token copies of
Skullwinder with haste.
When the
Skullwinder tokens enter, they trigger, returning
Mana Geyser and
Devastating Onslaught from your graveyard to your hand.
Repeat.
Results
Infinite LTB.
Infinite ETB.
Infinite sacrifice triggers.
Infinite death triggers.
Infinite storm count.
Infinite red mana.
Infinite creature tokens with haste.
Infinite magecraft triggers.
Target opponent returns all cards in their graveyard to their hand.