Echocasting Symposium + Temporal Manipulation + Possessed Skaab

Echocasting Symposium

Temporal Manipulation

Possessed Skaab

How it works

1. Cast Temporal Manipulation by paying its mana cost, causing you to take an extra turn after this one.
2. Move to your next turn. At the beginning of your precombat main phase, Echocasting Symposium's paradigm ability triggers, causing you to cast a copy of it from exile.
3. Resolve the copy, creating a token copy of Possessed Skaab
4. When the Possessed Skaab token enters, it triggers, returning Temporal Manipulation from your graveyard to your hand.
5. Repeat.

This clever loop spins up an endless chain of extra turns by chaining Echocasting Symposium with Temporal Manipulation, locking down the game through sheer temporal dominance. The paradigm mechanic baked into Echocasting Symposium is the engine here, allowing you to continually recast the spell for free from exile at the start of your main phases to duplicate your board. Meanwhile, Possessed Skaab acts as the vital recursive anchor; every time its token copy enters the battlefield, its triggered ability plucks Temporal Manipulation right back out of your graveyard and into your hand, ready to be cast again.