Princess Yue | Wormfang Turtle

Cards

Stunt Double in hand.
Princess Yue and
Wormfang Turtle on the battlefield (
Princess Yue is not a land).

Cast
Stunt Double by paying its mana cost. Choose to have it enter as a copy of
Princess Yue.
Put
Stunt Double into your graveyard due to the legend rule.
When
Stunt Double dies, it triggers, returning it from your graveyard to the battlefield as a land named Moon. Choose to have it enter as a copy of
Wormfang Turtle, gaining its abilities.
When
Stunt Double enters, its first ability triggers, exiling it.
When
Stunt Double leaves the battlefield, its second ability triggers, returning
Stunt Double from exile to the battlefield. Choose to have it enter as a copy of
Princess Yue.
Repeat from step 2.

This combo has been estimated to be Exhibition (Bracket 1+).