Color Identity: C

Initial Card State
- Gonti's Aether Heart in exile (exiled by Prototype Portal).
- All other permanents on the battlefield.
Notable Prerequisites
- You control no other Thopters.
Mana Needed
- ({6} magic symbol)
each turn available.
Steps
- At the beginning of your upkeep, Thopter Assembly triggers.
- Holding priority, activate Prototype Portal by paying ({6} magic symbol)
and tapping it, creating a token copy of Gonti's Aether Heart. - Gonti's Aether Heart enters the battlefield, causing you to get ({E} magic symbol)
({E} magic symbol)
. - Resolve the Thopter Assembly trigger, returning it from the battlefield to your hand and creating five 1/1 Thopter artifact creature tokens.
- The Thopters enter the battlefield, triggering Gonti's Aether Heart five times, causing you to get ten ({E} magic symbol)
. - Activate Ashnod's Altar five times by sacrificing the five Thopters, adding ten ({C} magic symbol)
. - Cast Thopter Assembly by paying ({6} magic symbol)
. - Thopter Assembly enter the battlefield, triggering Gonti's Aether Heart, causing you to get ({E} magic symbol)
({E} magic symbol)
. - Activate Gonti's Aether Heart by paying eight ({E} magic symbol)
and exiling it, causing you to take an extra turn after this one. - Repeat each turn.
Bracket Tag
This combo has been estimated to be Ruthless (Bracket 4+).