Ziatora, the Incinerator, Clock of Omens, Strionic Resonator, and Xorn

Prerequisites

• Ziatora, the Incinerator on the battlefield
• Clock of Omens on the battlefield
• Strionic Resonator on the battlefield
• Xorn on the battlefield
• You control another creature with power 1 or greater
• available

Steps

1. At the beginning of your end step, Ziatora triggers, causing you to sacrifice another creature with power one or greater
2. Ziatora triggers, holding priority, activate Strionic Resonator by paying and tapping it, copying Ziatora's ability
3. Resolve the copy of Ziatora's ability, dealing damage equal to the sacrificed creature's power to any target and creating four Treasure artifact tokens
4. Activate Clock of Omens by tapping two Treasure tokens, untapping Strionic Resonator
5. Activate two Treasure tokens by tapping and sacrificing them, adding
6. Activate Strionic Resonator by paying and tapping it, copying Ziatora's ability
7. Repeat from step 3

Results

• Infinite damage
• Infinite tapped Treasure tokens