Kefka is a little difficult to enable at three colors, but if you get it early enough you can build towards it
Burn spells wont kill it
If you want something a bit smaller in scale, cards like Sparkmage Apprentice, Ghitu Shaman, and Basalt Ravager can really bring the beats
We also have seen similar stuff like this before in Ivy, Gleeful Spellthief and Gargos, Vicious Watcher
Creatures (31) 4 Bloodghast 4 Gatekeeper of Malakir 4 Kalastria Highborn 3 Bloodthrone Vampire 4 Viscera Seer 4 Blood Artist 4 Stromkirk Condemned 4 Cordial Vampire Lands (22) Spells (7) It also wouldnt be hard to get a Godless Shrine in there, and maybe some Concealed Courtyards, if we wanted to add Cruel Celebrant to the mix
My top-performing color combos were: Izzet (UR) Artifact Aggro Dimir (UB) Tempo with artifact synergy Rakdos (BR) Aggressive with solid removal and recursion One thing I like a lot about EOE, a lot of the color combinations had a slightly different feel than their usual archetypes, which was refreshing