Sliver Gravemother, Intruder Alarm, Firewake Sliver, and Manaweft Sliver

Prerequisites

• Sliver Gravemother in the command zone
• Intruder Alarm on the battlefield
• Firewake Sliver on the battlefield
• Manaweft Sliver on the battlefield
• You have at least three opponents
• At most plus three mana of any three different colors available, plus enough mana to pay for commander tax, if applicable

Steps

1. Activate all Slivers you control by tapping them, adding one mana of any color for each Sliver tapped this way
2. Cast Sliver Grandmother from the command zone by paying and commander tax, if applicable
3. When Sliver Grandmother enters the battlefield, Intruder Alarm triggers
4. Holding priortiy, activate Sliver Gravemother by tapping it, adding one mana of any color
5. Resolve the Intruder Alarm trigger, untapping all creatures
6. Activate all Slivers you control by tapping them, adding one mana of any color for each Sliver tapped this way
7. Activate Sliver Gravemother by paying and sacrificing it
8. Choose not to return Sliver Gravemother to the command zone from your graveyard
9. Resolve the Sliver Gravemother ability, giving target Sliver +2/+2 until end of turn
10. Activate Sliver Gravemother's encore ability by paying and exiling it
11. Choose to return Sliver Gravemother to the command zone from exile
12. Resolve the Sliver Gravemother ability, creating a token copy of it for each opponent you have
13. When the Sliver Gravemother tokens enter the battlefield, Intruder Alarm triggers that many times
14. Holding priority, activate the Sliver Gravemother tokens by tapping them, adding at least three mana of any color(s)
15. Resolve the first Intruder Alarm trigger, untapping all creatures
16. Activate all Slivers you control by tapping them, adding one mana of any color for each Sliver tapped this way
17. Repeat from step 15 for each remaining trigger
18. Repeat from step 1

Results

• Infinite colored mana
• Infinite commander casts
• Infinite creature tokens with haste
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinitely large Slivers until end of turn
• Infinite mana creatures you control can produce
• Infinite sacrifice triggers
• Infinite storm count
• Infinite untap of all creatures