Worm Harvest, Groundskeeper, and Phyrexian Altar

Prerequisites

• Worm Harvest in the graveyard
• Groundskeeper on the battlefield
• Phyrexian Altar on the battlefield
• You have at least seven land cards in your graveyard
• You have a land card in hand
• You have a basic land card either in hand or in your graveyard
• available

Steps

1. Cast Worm Harvest for its retrace cost by paying and discarding a land card from your hand, creating at least eight 1/1 Worm creature tokens
2. Activate Phyrexian Altar seven times by sacrificing seven Worm tokens, adding
3. Activate Groundskeeper by paying , returning a basic land card to your hand from your graveyard
4. Repeat

Results

• Infinite colored mana
• Infinite creature tokens
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite magecraft triggers
• Infinite sacrifice triggers
• Infinite self-discard triggers
• Infinite storm count