Thousand-Faced Shadow + Great Whale + Throat Slitter

Thousand-Faced Shadow

Great Whale

Throat Slitter

How it works

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

This mesmerizing loop revolves around a clever tag-team of ninjutsu and enter-the-battlefield untapping. By continually swapping Throat Slitter and Thousand-Faced Shadow in and out of your hand, you repeatedly smuggle new attackers into the red zone while triggering a fresh copy of Great Whale every time. Because Great Whale untaps your lands upon arrival, it refunds the mana required to bounce and recast your ninjas, leaving you free to flood the board with an endless army of whale tokens and deal infinite combat damage to your opponent.