: Add or . Spend this mana only to cast a noncreature spell.
Whenever you cast a noncreature spell, if at least four mana was spent to cast it, put a +1/+1 counter on The Emperor of Palamecia. Then if it has three or more +1/+1 counters on it, transform it.
Starfall — Whenever The Lord Master of Hell attacks, it deals X damage to each opponent, where X is the number of noncreature, nonland cards in your graveyard.
Lead with The Emperor early as a ramp dork that only fuels noncreature spells, then chain big (4+ mana) instants, sorceries, and artifacts to load +1/+1 counters and transform him into The Lord Master of Hell. Once flipped, attack to burn each opponent for the number of noncreature, nonland cards in your graveyard, often killing the table over a turn or two while you keep slinging spells.
Two-mana commander that both ramps and pressures, recovering quickly after removal
Starfall scales into a multiplayer wincon with no need for combat damage tricks beyond connecting once
Izzet has the deepest pool of cantrips, rituals, and big spells to fill the yard and hit the 4-mana threshold
Rewards a spell-dense build that's resilient to creature wipes
The mana from his tap ability can't cast creatures, limiting flexibility
Needs to cast expensive noncreature spells to transform, which can be slow without ramp
Starfall requires him to connect, so evasion and protection are mandatory or you get chump-blocked