Color Identity: U

Initial Card State
- All permanents on the battlefield (Karn with at least three loyalty counters on it).
Notable Prerequisites
- You are able to make eight ({E} magic symbol)
each turn.
Mana Needed
- ({6} magic symbol)
each turn available.
Steps
- Activate Gonti's Aether Heart by paying eight ({E} magic symbol)
and exiling it, causing you to take an extra turn after this one. - Activate Karn's second loyalty ability by removing two loyalty counters from it, returning Gonti's Aether Heart from exile to your hand.
- Cast Gonti's Aether Heart by paying ({6} magic symbol)
. - Displacer Kitten triggers, blinking Karn.
- Repeat each turn.
Bracket Tag
This combo has been estimated to be Ruthless (Bracket 4+).