You can find non-foil and traditional foil alternate-art versions of Cid, Timeless Artificer in Play Boosters and Collector Boosters
Vigilance lets them attack but still defend on your opponent's turn, and the blink effect is a great way to protect some of your cards
If you're on the play, your best playline following Pluto on turn one would be to play Kit Cloudkicker on turn two , allowing you to bounce your opponent's turn one card back to their hand, giving your two characters on the board while your opponent has none
It's better than Opt in a non-graveyard sensitive deck, but in one that cares about the graveyard
Its here that Blues ample countermagic shines best, complementing the suite of Black control cards to form a true control-aggro deck (not that wed turn down an unblockable snake on the side, of course)
However, for official tournaments and events, proxy cards are not allowed