Echocasting Symposium + Phage the Untouchable Combo

Played with this combo

Prerequisites
What do I need to start this combo?
- Phage the Untouchable on the battlefield.
- Echocasting Symposium in hand.
- available
Steps
How does this combo work?
- 1
  Cast Echocasting Symposium by paying , causing an opponent to create a token copy of Phage and exiling Echocasting Symposium.
- 2
  When the Phage token enters, it triggers, causing its controller to lose the game.
- 3
  During 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. Resolve the copy, causing an opponent to create a token copy of Phage.
- 4
  Repeat from step 2.
Results
What do I get from this combo?
- Target player loses the game on each of your turns