Games can get grindy, and with how many cards you draw, you should have answers to anything your opponents will try to do
If an effect causes a creature with changeling to lose all abilities, it will remain all creature types, even though it will no longer have changeling
I cant imagine many better creatures for an aggressive deck, and the only thing keeping it from a 10/10 in my eyes is that at 2 toughness, its pretty easy to kill with removal
At first glance, Elspeth, Storm Slayer is simply doing what most Elspeth cards do: create tokens, buff your creatures, and remove enemy ones
What made Kefka special, at least back in 1994, was being such a huge departure from the villains in previous Final Fantasy games