Devastating Onslaught + Mana Geyser + Eternal Witness

Prerequisites

• Opponents control at least ten tapped lands.

Steps

1. 1Cast Mana Geyser by paying , adding for each tapped land your opponents control.
2. 2Cast Devastating Onslaught by paying , creating two token copies of Eternal Witness with haste.
3. 3When the Eternal Witness tokens enter, they trigger, returning Mana Geyser and Devastating Onslaught from your graveyard to your hand.
4. 4Repeat.

Effects

• Infinite creature tokens with haste
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite magecraft triggers
• Infinite red mana
• Infinite sacrifice triggers
• Infinite storm count