What happens if I copy a legendary creature?

Clone can copy a legendary creature. However, if there are ever two or more legendary creatures with the same name on the battlefield at the same time all of them are put into their owners’ graveyards. This isn’t destruction or a sacrifice; the creatures are simply removed from the battlefield.

Can you copy Progenitor Mimic?

If Progenitor Mimic somehow enters the battlefield at the same time as another creature, it can’t become a copy of that creature. You may choose only a creature that’s already on the battlefield. You can choose not to copy anything.

What happens when two legendary creatures enter the battlefield?

704.5k If a player controls two or more legendary permanents with the same name, that player chooses one of them, and the rest are put into their owners’ graveyards. This is called the “legend rule.”

Does progenitor mimic target?

Progenitor Mimic states that it enters the battlefield as a copy of any creature on the battlefield, but doesn’t say copy “target” creature.

How does progenitor mimic work?

Progenitor Mimic copies exactly what was printed on the original creature and nothing more (unless that creature is copying something else or is a token). If the chosen creature is a token, Progenitor Mimic copies the original characteristics of that token as stated by the effect that put it onto the battlefield.

Can changelings be snow creatures?

Changelings aren’t automatically snow creatures.

Does the legendary rule apply to lands?

Yes, the legendary rule applies to all legendary permanents including lands. This is why most people only run 1-2 Urborg, Tomb of Yawgmoth in their decks. From the Comp Rules: 205.4c Any permanent with the supertype “legendary” is subject to the state-based effect for legendary permanents, also called the “Legend rule”