I think the best home for this is in older formats, where its comparable to Eidolon of the Great Revel, a card that has been a staple in burn decks ever since it got printed
The Expertise is the only one that costs six, but you get a free five cost spell from your hand
Aurelia, the Warleader equipped with the Helm of the Host can result in infinite combat phases
This dual-purpose nature is similar to how players might run Vorinclex, Voice of Hunger for the ramp, without fully considering the negative attention the stax effect can attract
Kaalia of the Vast is the Commander, and heres the decklist out of the box: Creatures (29) 1 Mother of Runes 1 Serra Angel 1 Dragon Whelp 1 Fallen Angel 1 Anger 1 Bladewing the Risen 1 Reiver Demon 1 Furnace Whelp 1 Voice of All 1 Oni of Wild Places 1 Razorjaw Oni 1 Boros Guildmage 1 Angel of Despair 1 Orzhov Guildmage 1 Akroma, Angel of Fury 1 Oros, the Avenger 1 Duergar Hedge-Mage 1 Gwyllion Hedge-Mage 1 Malfegor 1 Lightkeeper of Emeria 1 Angelic Arbiter 1 Shattered Angel 1 Archangel of Strife 1 Dread Cacodemon 1 Kaalia of the Vast 1 Mana-Charged Dragon 1 Tariel, Reckoner of Souls 1 Basandra, Battle Seraph 1 Avatar of Slaughter Lands (38) Spells (33) 1 Sol Ring 1 Earthquake 1 Diabolic Tutor 1 Darksteel Ingot 1 Terminate 1 Akroma's Vengeance 1 Congregate 1 Lightning Greaves 1 Syphon Mind 1 Righteous Cause 1 Evincar's Justice 1 Orim's Thunder 1 Bathe in Light 1 Boros Signet 1 Cleansing Beam 1 Master Warcraft 1 Mortify 1 Orzhov Signet 1 Rakdos Signet 1 Wrecking Ball 1 Return to Dust 1 Sulfurous Blast 1 Pyrohemia 1 Path to Exile 1 Armillary Sphere 1 Comet Storm 1 Death by Dragons 1 Stranglehold 1 Syphon Flesh 1 Vow of Duty 1 Soul Snare 1 Vow of Lightning 1 Vow of Malice The concept behind the deck is pretty straightforwardattack with Kaalia of the Vast and put a huge Demon, Dragon, or Angel into play for free and attacking as well
