Another amazing mass destruction spell is Vandalblast, which destroys all artifacts each opponent controls when overloaded
The Black one Flare of Malice costs four for an instant speed Diabolic Edict for everyone else and then they have to sac the biggest costed one
Having one of these characters on the board also allows you to use key actions like Trials and Tribulations and This Is My Family, which both cost 2 and allow you to hit an enemy character with -4 strength or gain 1 lore and draw a card, respectively
A sort of inversion on Etali, Primal StormEtali, Primal Storm, an unchecked Kefka, Dancing MadKefka, Dancing Mad will take over the game very quickly, which is why it costs seven mana
Plus, Growing Threat is about the most boring deck name I can think of
Basically any card that says when you perform your deck's dedicated action, draw a card is solid since it adds card advantage in addition to whatever you were doing