Satoru Umezawa + Great Whale + Biting-Palm Ninja

Satoru Umezawa

Great Whale

Biting-Palm Ninja

How it works

1. Declare Biting-Palm Ninja as an attacker.
2. When it isn't blocked, activate up to seven lands you control by tapping them, adding at least 4.
3. Activate Great Whale's ninjutsu ability by paying 2 and returning Biting-Palm Ninja from the battlefield to your hand, putting Great Whale onto the battlefield from your hand tapped and attacking.
4. When Great Whale enters the battlefield, it triggers, untapping up to seven lands.
5. Activate Biting-Palm Ninja's ninjutsu ability by paying 2 and returning Great Whale from the battlefield to your hand, putting Biting-Palm Ninja onto the battlefield from your hand tapped and attacking.
6. Repeat from step 2.
7. If you control up to seven lands that can tap to produce at least 5, this combo nets infinite mana.