Owls were shown first in the Owl Island Secluded Entrance card, revealing the secret Location but telling us very little else
Not only is it one of the most iconic weapons in video games, it pairs perfectly with the Limit Break commander deck that features Cloud as its spotlight commander
Vivi is also a win condition, dealing a point of damage to each opponent each time you cast a noncreature spell
Its a COLLECTIBLE, so run out and buy a couple sets of cards
Kefka takes things a bit further by giving you access to black in your deck, though, giving you access to creature reanimation and tutoring straight for a Niv-Mizzet to combo out quickly
I like these sorts of items that you can banish for two different effects, depending on which characters you have in play