OBEY ME HEADCANON: THE PERKS OF HIS SIN
Demon Bros as the avatars of each sin have a few little tricks up their sleeves!
When he first becomes a demon he doesn't really understand his sin
He doesn't know how this makes him the most powerful though accurately categorizes him as the eldest
What could pride even do?
It's when he picks up a harp for the first time since The Fall that he realizes the potential
The instrument lay dormant in his hands until he cautiously plucked a few strings
His ears perked up a bit at the pleasant sound, surprising himself as he was terrible at music previously
Lucifer continued plucking until a familiar song came from the instrument
Rushing to a foreign music booklet, Lucifer realizes he can now read music
He spends the week seeing if he can transfer his instant learning to other activities or skills
Though, due to his pride, he can only instantly learn something if he believes he can do it
This is why horny lucifer is best lucifer
Also doesn't understand why greed is so important
After a while pieces together that eldest three's sins corrupt souls but the younger four corrupt bodies
Deciding to test it out, Mammon takes a vacation to the Human Realm gambling tents just a few hundred years after Cain and Abel
He accurately predicts when someone's luck has run out due to greed and can manipulate others into feeling greedier
Mammon begins to gamble with a modest amount of money
He is accused of cheating at first because no matter what game he's played he's won
But hes now an undefeated poker champion somewhere
Despite his incredible ability to use greed for his advantage, making him rich wherever he goes, he also feels an insatiable need to possess
It's a golden cage of sorts
Levi's little perk has to start with him
A bit more unconscious perk than anyone else's
If he's jealous of something, other people immediately resonate with what he's feeling
It's why when one demon brother gets so close to you, all demon brothers are suddenly dog-piling you with attention
He realized his talent several centuries ago by manipulating Narcissus into envying himself
It makes him prime for command of Diavolo's navy
Though this is not to say Levi can overwrite someone's feelings
The envy must already be present for him to manipulate it
Though in the Devildom there is no shortage of his sin
Wrath is a physical route for anger
And Satan finds he has plenty of it
In his early days, he found he was great at physical fights
Though, after a while he realizes its because wrath guides his body through the motions
His mind blanks and his movements are completely in the rhythm of the battle
If someone could throw a punch at Satan, he could probably dish out the exact same punch twice
The only drawback is the exhaustion
If wrath is the physical translation of anger, it is an energy
Therefore, something has to feed it
Satan often pays with his physical form tearing at itself
So, he sticks to battle strategy as a way to channel his sin
similarly to the rest of the younger brothers, Asmo's sin corrupts the body
of course he is naturally beautiful but asmo's secret is camouflage
he appears beautiful to everyone because his physical form transfixes others through illusion
the first time he notices this is when his brothers cant decide what eye color he has
they give out wildly different answers but all agree on his strawberry blonde locks
in terms of others, asmodeus cannot influence people the way leviathan can
but he can lure them through illusion
he is also fueled by the chaos of his sin because its messy and dramatic which amplifies the effectiveness of his magic
however, asmo realizes that no one has ever truly seen him
some might be tempted to say raw strength
but actually Beel can't be poisoned
don't be misguided though, he can definitely taste when food is bad
but he's never experienced a foodborne illness
not a single stomach ache nor food poisoning
this man could lick a gas station floor and be alright
they found out when mammon poisoned him on accident and Beel was just fine the next day
Satan proceeded to test his younger brother to the limit but found that Beel's stomach simply processed all food normally
horrific, off-putting mood swings when he's hungry coupled with his physical size and physicality is often equal to most of his brothers' combined strengths
so Beel spends much of his youth taming this side of him, and holding his brothers together, so that despite his rank and age, no one will have to look after him
its his gift to his brothers
It might actually be unfair to put Belphie as the last brother
but its literally just his laziness
his magic is powerful, condescending, and manipulative
luckily he is either too sleepy or too neutral to use it
but dream magic warps your emotions, sucking you in and making you fear all that once kept you safe
because the fabric of reality in dreams is his to mold
the drawback here is that Belphegor must be close enough to you to use it
not physically but emotionally
he must emotionally understand you in order to manipulate your dreams
which, of the brothers, limits his powers greatly
he opts to share a room with his twin because Beel usually has the most vivid nightmares about The Fall
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