Cloudstone Curio, Frog Tongue, Incubation Druid, and Instill Energy

Prerequisites

• Cloudstone Curio on the battlefield
• Frog Tongue in hand
• Incubation Druid on the battlefield
• Instill Energy on the battlefield
• Instill Energy attached to Incubation Druid
• Incubation Druid has at least one +1/+1 counter on it
• You control a land that can tap to produce

Steps

1. Activate Incubation Druid by tapping it, adding
2. Activate Instill Energy by paying , untapping Incubation Druid
3. Cast Frog Tongue by paying , attaching it to Incubation Druid
4. Frog Tongue enters the battlefield, triggering itself and Cloudstone Curio
5. Resolve the Frog Tongue trigger, causing you to draw a card
6. Resolve the Cloudstone Curio trigger, returning Instill Energy from the battlefield to your hand
7. Cast Instill Energy by paying , attaching it to Incubation Druid
8. Instill Energy enters the battlefield, triggering Cloudstone Curio, returning Frog Tongue from the battlefield to your hand
9. Repeat

Results

• Infinite card draw
• Infinite draw triggers
• Near-infinite mana lands you control can produce
• Near-infinite storm count