This implies he is better in the creature based decks than the artifact ones but I am perfectly happy to leave it at he is really good in both kinds of decks and outstanding when there is overlap
But even without it's pretty strong here
For one thing, Isolation Tower doesn't care how your opponent's creature gets hexproof, so it can be used against a deck like Infect in Modern (or Steel Leaf Stompy in Standard) to counter a Blossoming Defense
Kefka's distinctive design and iconic place within Final Fantasy 's history more than warrant his inclusion
As youre looking through the cards in your collection, read through the abilities on your Pokmon and Trainer cards and pick a few to include that increase your card draw so you can put your strategies into play
As an example, Emchompite says that cards that were included within Japanese sets, like the Secret Rare Yveltal EX from Best of XY, but as promos in English, are usually more expensive in Japanese just due to the nature of their release (i.e., having to pull the card from a pack vs a guaranteed promo card in a product)