Princess Yue | Wormfang Turtle | Mirrorhall Mimic // Ghastly Mimicry

Cards

Mirrorhall Mimic // Ghastly Mimicry in hand.
Princess Yue and
Wormfang Turtle on the battlefield (
Princess Yue is not a land).

Cast
Mirrorhall Mimic by paying its mana cost. Choose to have it enter as a copy of
Princess Yue.
Put
Mirrorhall Mimic into your graveyard due to the legend rule.
When
Mirrorhall Mimic 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
Mirrorhall Mimic enters, its first ability triggers, exiling it.
When
Mirrorhall Mimic leaves the battlefield, its second ability triggers, returning
Mirrorhall Mimic from exile to the battlefield. Choose to have it enter as a copy of
Princess Yue.
Repeat from step 2.