Ah, I'm afraid Multiverse's Mechanics support isn't clever enough to understand granting the mechanic to other cards. It's putting this card's name into the reminder text. You'll have to either create an alternate mechanic for the granted version that says "this card" or "that card" rather than "~"; or you could just write the mechanic out manually on this card, if this is the only one that's granting the mechanic to other cards.

ah, i didn't even notice. thank you

Don't do costs like that, they look very ugly, they are potentially confusing, and they add almost no value because this creature already requires you to have all three colors.