If the target creature is an illegal target, you'll still gain control of the target Equipment until end of turn, but you won't attach it to the chosen creature
Zidane Tribal Ragavan, Nimble Pilferer can be extremely groan inducing on turn 1, but surprisingly tame in Limited otherwise
If the ability that's copied is modal (that is, it says "Choose one " or the like), the copy will have the same mode
That adds some insurance policy to your more aggressive plays as those looking to swing with characters will need to get past Baloo, Von Bruinwald XIII first, and those looking to sweep the board with big and dangerous songs like Grab Your Swords and Be Prepared will risk pushing the game in your favour, or even handing you the win

Premium Full Art Cards (Hidden Trials) Illustration by Rubi Asami FINAL FANTASY VI FINAL FANTASY XIII-2 Illustration by Mihoko Ishii FINAL FANTASY VII REMAKE Illustration by Yuya Ishihata FINAL FANTASY IX Illustration by Ryoma Ito FINAL FANTASY TACTICS A2: Grimoire of the Rift Illustration by Yukihiro Kajimoto FINAL FANTASY Illustration by Gen Kobayashi DIRGE OF CERBERUS -FINAL FANTASY VII- Illustration by Sara Shimokobe FINAL FANTASY IV Illustration by Toshitaka Matsuda FINAL FANTASY TYPE-0 Illustration by Fumio Minagawa FINAL FANTASY XI Illustration by Miki Yamashita FINAL FANTASY XIII Illustration by Oreki Genya FINAL FANTASY TYPE-0 Premium full art cards have the same sheen as other premium cards, though its hard to convey here