Gilder Bairn, Lost Jitte, and Splinter Twin

Prerequisites

• Gilder Bairn on the battlefield
• Lost Jitte on the battlefield
• Splinter Twin on the battlefield

Steps

1. Activate Splinter Twin by tapping Gilder Bairn, producing its effect
2. Activate Gilder Bairn by paying and untapping it, doubling each counter on Lost Jitte
3. Activate Lost Jitte three times by removing three charge counters from it, untapping three lands
4. Activate those lands by tapping them, adding
5. Repeat from step 2
6. Once you have infinite counters on Lost Jitte, you may instead double the counters on any other permanents

Results

• Infinite proliferate for permanents
• Infinite colored mana
• Infinite creature tokens
• Infinite +1/+1 counters on creatures you control