Satoru Umezawa + Palinchron + Moon-Circuit Hacker

Satoru Umezawa

Palinchron

Moon-Circuit Hacker

How it works

1. Declare Moon-Circuit Hacker as an attacker.
2. When it isn't blocked, activate up to seven lands you control by tapping them, adding at least 2.
3. Activate Palinchron's ninjutsu ability by paying 2 and returning Moon-Circuit Hacker from the battlefield to your hand, putting Palinchron onto the battlefield from your hand tapped and attacking.
4. When Palinchron enters the battlefield, it triggers, untapping up to seven lands.
5. Activate Moon-Circuit Hacker's ninjutsu ability by paying and returning Palinchron from the battlefield to your hand, putting Moon-Circuit Hacker 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 3, this combo nets infinite mana.

This delightful loop turns the combat step into an endless engine by leveraging Satoru Umezawa's passive ability to grant ninjutsu to every creature in your hand, including Palinchron. You start by sneaking Moon-Circuit Hacker into combat, then repeatedly swap it with Palinchron using its cheap ninjutsu cost while Satoru Umezawa helps you dig through your library. Every time Palinchron enters the battlefield, its triggered ability untaps your lands to pay for the next swap, generating infinite mana and endless enter-the-battlefield triggers so long as your lands can produce the required colors.