Yidaro, Wandering Monster, Alena, Kessig Trapper, Cloudstone Curio, and Fervor

Prerequisites

• Yidaro, Wandering Monster in hand
• Alena, Kessig Trapper on the battlefield
• Cloudstone Curio on the battlefield
• Fervor on the battlefield
• available

Steps

1. Activate Yidaro's cycling ability by paying and discarding it
2. Yidaro triggers, returning itself from your graveyard to the battlefield
3. Yidaro enters the battlefield, triggering Cloudstone Curio
4. Holding priority, activate Alena by tapping it, adding at least eight
5. Resolve the Cloudstone Curio trigger, returning Alena from the battlefield to your hand
6. Resolve the Yidaro ability from step 1, causing you to draw a card
7. Cast Alena by paying
8. Alena enters the battlefield, triggering Cloudstone Curio, returning Yidaro from the battlefield to your hand
9. Repeat

Results

• Infinite card draw
• Infinite draw triggers
• Infinite self-discard triggers
• Near-infinite ETB
• Near-infinite LTB
• Near-infinite red mana
• Near-infinite storm count