Malenia, Blade of Miquella

First Strike, Haste
Whenever a creature dealt damage by Malenia,
Blade of Miquella this turn dies, create a Scarlet
Rot artifact token with "{t}, sacrifice this artifact:
Untap Malenia, Blade of Miquella."
Sacrifice three Scarlet Rot artifact tokens:
Transform Malenia, Blade of Miquella.
I have never known defeat.