Im most inclined to suggest a Voltron playstyle for Kefka, since both halves benefit from combat buffs, but honestly, you can build any deck around him
This differs a bit from the traditional definition in a couple key ways: A tutor isnt limited to searching your own library A tutor isnt limited to putting a card in your hand or on top of your deck Naturally, searching a library that isnt your own introduces a certain amount of risk, as your knowledge of the deck youre searching is going to be imperfect at best, and nonexistent at worst
There is a lot here to like
In most cases, Id say the internet is where its at simply because it has the largest pool of buyers
Given we get a 1/1 on EtB, and that there are plenty of ways to make mana from creatures dying, you can loop around your unlikely buddies and whoever else they bring along for the ride