River Song + Radiant Performer + Field of Ruin

Prerequisites

• An opponent controls at least one nonbasic land.

Steps

1. 1Activate Field of Ruin's second ability by paying , tapping and sacrificing it, targeting any nonbasic land an opponent controls.
2. 2Holding priority, cast Radiant Performer by paying .
3. 3When Radiant Performer enters the battlefield, it triggers, copying Field of Ruin's ability for each other nonbasic land your opponents control.
4. 4Resolve the first Field of Ruin ability, destroying the land it it targeting, then causing each player to search their library for a basic land card and put it onto the battlefield.
5. 5River Song triggers for each opponent who searches this way.
6. 6Resolve the first trigger, putting a +1/+1 counter on it and dealing damage equal to its power to an opponent.
7. 7Repeat step 6 for each other trigger.
8. 8Repeat from step 4 for each other Field of Ruin ability.

Effects

• Near-infinite damage