Clara Oswald, Mark of Sakiko, Aggravated Assault, and Sticky Fingers

Prerequisites

• Clara Oswald on the battlefield
• Mark of Sakiko on the battlefield
• Aggravated Assault on the battlefield
• Sticky Fingers on the battlefield
• Mark of Sakiko and Sticky Fingers attached to the same Doctor or creature with changeling you control that has power 2 or greater and that does not have summoning sickness
• An opponent cannot block the creature with Sticky Fingers and Mark of Sakiko attached

Steps

1. Deal combat damage using the creature that has Mark of Sakiko and Sticky Fingers attached
2. The creature triggers four times
3. Resolve the first two triggers, adding at least
4. Resolve the last two triggers, creating two Treasure artifact tokens
5. Move to your postcombat main phase
6. Activate the Treasures by tapping and sacrificing them, adding
7. Activate Aggravated Assault by paying , untapping all creatures you control and causing you to get an additional combat and main phase after this one
8. Repeat

Results

• Infinite combat damage
• Infinite combat phases
• Infinite green mana
• Infinite mana creatures you control can produce
• Infinite untap of creatures you control