Kars, Ultimate Lifeform

(Transforms from Kars)
Indestructible
{1}: Choose a creature from Magic. Kars, Ultimate Lifeform gains that creature's textbox and creature types. Then, it gets +X/+Y where X is equal to that creature's power and Y is equal to that creature's toughness. You may only use this ability once per creature. ( This effect does not end at that end of turn. This creature gains all rules text, flavor text, and watermarks from the chosen creature.)