Color Identity: U

Initial Card State
- All permanents on the battlefield.
Notable Prerequisites
- Pemmin's Aura attached to an artifact creature you control.
Steps
- Activate Urza's first ability by tapping the creature with Pemmin's Aura attached, adding ({U} magic symbol)
. - Activate Pemmin's Aura by paying ({U} magic symbol)
, untapping the creature it is attached to. - Wake Thrasher triggers, giving itself +1/+1 until end of turn.
- Repeat.
Results
- Infinitely large creature until end of turn.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).