Twilight Drover, Phyrexian Altar, and Kaya, Geist Hunter

Prerequisites

• Twilight Drover on the battlefield
• Phyrexian Altar on the battlefield
• Kaya, Geist Hunter on the battlefield
• available

Steps

1. Activate Kaya's second loyalty ability by removing two loyalty counters from it, causing you to double any tokens you create this turn
2. Activate Twilight Drover by paying and removing a +1/+1 counter from it, creating four 1/1 Spirit creature tokens with flying
3. Activate Phyrexian Altar three times by sacrificing three Spirits, adding
4. When the Spirits die, Twilight Drover triggers three times, putting three +1/+1 counters on itself
5. Repeat from step 2

Results

• Infinite LTB
• Infinite ETB
• Infinite colored mana
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite creature tokens
• Infinite +1/+1 counters on a creature