Seasons Past + Walk the Aeons + Scheming Symmetry

Seasons Past
Walk the Aeons
Scheming Symmetry

Requires
Seasons Past must be in hand. Walk the Aeons must be in hand, or in the graveyard. Scheming Symmetry must be in hand, or in the graveyard. Mana needed: 8 each turn
Steps
  1. Cast Seasons Past by paying 4, returning Walk the Aeons, Scheming Symmetry, and any number of cards with different mana costs to your hand and putting Seasons Past on the bottom of your library.
  2. Cast Scheming Symmetry by paying , putting Seasons Past on top of your library and allowing target player to put the card of their choice in their library on top of their library.
  3. Cast Walk the Aeons by paying 4, granting you an extra turn.
  4. In the draw step of your next extra turn, draw Seasons Past.
  5. Repeat each turn.
Results
Infinite turns.