Echocasting Symposium + Walk the Aeons + Warden of the Eye

Mana needed: {4}{U}{U} each turn

URW identity

Commander legal

The 3 combo pieces

• Echocasting Symposium
• Walk the Aeons
• Warden of the Eye

How to execute it

1. Cast Walk the Aeons 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 Warden of the Eye
4. When the Warden of the Eye token enters, it triggers, returning Walk the Aeons from your graveyard to your hand.
5. Repeat.

What the combo produces

• Infinite turns
• Lock