Princess Yue | Wormfang Turtle | Vesuvan Doppelganger

Cards

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

Cast
Vesuvan Doppelganger by paying its mana cost. Choose to have it enter as a copy of
Princess Yue.
Put
Vesuvan Doppelganger into your graveyard due to the legend rule.
When
Vesuvan Doppelganger 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
Vesuvan Doppelganger enters, its first ability triggers, exiling it.
When
Vesuvan Doppelganger leaves the battlefield, its second ability triggers, returning
Vesuvan Doppelganger 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+).