Argothian Elder + Wirewood Lodge + Forbidden Orchard + Massacre Wurm

Argothian Elder

Wirewood Lodge

Forbidden Orchard

Massacre Wurm

How it works

1. Activate Forbidden Orchard by tapping it, adding .
2. Forbidden Orchard triggers, causing an opponent to create a 1/1 Spirit creature token.
3. Activate Wirewood Lodge's second ability by paying and tapping it, untapping Argothian Elder.
4. Activate Argothian Elder by tapping it, untapping Forbidden Orchard and Wirewood Lodge.
5. Repeat an arbitrarily large number of times.
6. Activate Forbidden Orchard by tapping it, adding .
7. Forbidden Orchard triggers, causing an opponent to create a 1/1 Spirit creature token.
8. Activate Wirewood Lodge's first ability by tapping it, adding C.
9. Cast Massacre Wurm by paying 3.
10. When Massacre Wurm enters the battlefield, its first ability triggers, causing each opposing creature to get -2/-2 until end of turn.
11. Each Spirit token your opponents control dies as a state-based action due to having less than zero toughness.
12. Massacre Wurm's second ability triggers for each Spirit that dies this way, causing each opponent to lose an arbitrarily large amount of life and lose the game.