Yenna, Redtooth Regent
Instill Energy
Phantatog

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield.
You control a creature that can tap to produce at least 2. Yenna does not have summoning sickness.

   Steps

How does this combo work?
1
Activate the mana-producing creature by tapping it, adding at least 2.
2
Activate Yenna by paying 2 and tapping it, creating a token copy of Instill Energy attached to the mana-producing creature, then untapping Yenna and causing you to scry 2.
3
Activate the Instill Energy token by paying 0, untapping the mana-producing creature.
4
Activate Phantatog's first ability by sacrificing the Instill Energy token, causing Phantatog to get +1/+1 until end of turn.
5
Repeat.

   Results

What do I get from this combo?
Infinitely large Phantatog until end of turn
Infinite scry 2
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