Requires

Chandra, Hope's Beacon must be on the battlefield. Capture of Jingzhou must be in hand. Call to Mind must be in hand. Mystic Retrieval must be in the graveyard. You have not cast an instant or sorcery this turn. Mana needed: on each odd-numbered turn, with at most available each even-numbered turn

Steps

1. Cast Capture of Jingzhou by paying .
2. Chandra triggers, copying Capture of Jingzhou.
3. Resolve both Capture of Jingzhous, causing you to take two extra turns after this one.
4. Move to your next turn.
5. Cast etiher Mystic Retrieval or Call to Mind by paying its mana cost, targeting either Call to Mind or Mystic Retrieval in your graveyard.
6. Chandra triggers, copying Call to Mind or Mystic Retrieval, targeting Capture of Jingzhou.
7. Resolve both Call to Minds or Mystic Retrievals, returning Capture of Jingzhou and either Call to Mind or Mystic Retrieval from your graveyard to your hand.
8. Move to your next turn.
9. Repeat.

Results