Splinertwin Legendary

[Balefire Hellkite]

If I put {splintertwin} on a legendary creature, will the token kill the original because they'd both be legendary? Let's say I put Splintertwin on {Isperia, Supreme Judge} to draw multiple cards when my opponent attacked me. Do they both die from each other?

[Nymuera]

If I put {splintertwin} on a legendary creature, will the token kill the original because they'd both be legendary? Let's say I put Splintertwin on {Isperia, Supreme Judge} to draw multiple cards when my opponent attacked me. Do they both die from each other?

The Legend rule says you have to sacrifice one of them.

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."

[Chargingswadger]

If I put {splintertwin} on a legendary creature, will the token kill the original because they'd both be legendary? Let's say I put Splintertwin on {Isperia, Supreme Judge} to draw multiple cards when my opponent attacked me. Do they both die from each other?

The Legend rule says you have to sacrifice one of them.
Note: they are not sacrificed, they are merely put into the graveyard

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."

[Balefire Hellkite]

Ok thanks 😀