Satoru Umezawa
Intruder Alarm

   Prerequisites

What do I need to start this combo?
Satoru Umezawa and Intruder Alarm on the battlefield.
You control another creature that can attack this turn and that cannot be blocked by an opponent. You have a creature card in hand.
Creatures you control can tap to produce at least 2.

   Steps

How does this combo work?
1
Declare any other creature as an attacker.
2
When that creature isn't blocked, activate any number of creatures you control by tapping them, adding at least 2.
3
Activate a creature card's ninjutsu ability by paying 2 and returning the unblocked attacker to your hand, putting the creature card from your hand onto the battlefield tapped and attacking.
4
When the creature enters the battlefield, Intruder Alarm triggers, untapping all creatures.
5
Repeat from step 2.

   Results

What do I get from this combo?
Infinite LTB
Infinite ETB
Infinite mana creatures you control can produce
Infinite untap of creatures
Infinite untap of creatures you control
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