Yuriko, the Tiger's Shadow + Thousand-Faced Shadow + Palinchron

Yuriko, the Tiger's Shadow

Thousand-Faced Shadow

Palinchron

How it works

1. Declare Palinchron and Yuriko as attackers.
2. When they aren't blocked, activate up to seven lands you control by tapping them, adding at least 2.
3. Activate Thousand-Faced Shadow's ninjutsu ability by paying 2 and returning Yuriko from the battlefield to your hand, putting Thousand-Faced Shadow onto the battlefield from your hand tapped and attacking.
4. When Thousand-Faced Shadow enters the battlefield, it triggers, creating a token copy of Palinchron that is tapped and attacking.
5. When the Palinchron token enters the battlefield, it triggers, untapping up to seven lands.
6. Activate Yuriko's ninjutsu ability by paying and returning Thousand-Faced Shadow from the battlefield to your hand, putting Yuriko onto the battlefield from your hand tapped and attacking.
7. Repeat from step 2.
8. Deal combat damage using the Palinchron tokens, dealing infinite combat damage to the defending opponent.
9. If you control up to seven lands that can tap to produce at least 3, this combo nets infinite mana.

This clever loop relies on swapping your attackers in and out of your hand to endlessly duplicate a massive elemental force. By using Thousand-Faced Shadow's ninjutsu ability to smuggle in a fresh copy while bouncing Yuriko, the Tiger's Shadow back to your hand, you trigger a fresh Palinchron token that untaps your lands to pay for the next cycle. Each iteration leaves you with another flying leviathan to pressure your foes, while allowing you to replay Yuriko, the Tiger's Shadow and repeat the dance for an unstoppable wave of attackers.