This is x-posted in the Sorcerers, Spells folder but wasn't certain so... sigil of distraction and sigil of intimidation have the following interactions with minor demons and grasp of graves arms.

>sigil intimidation
You are beginning to feel a little fatigued.
You carefully school your thoughts, focusing on the enhancement of your aspect and bearing, and etch the Sigil of Intimidation in the air before you.
The arm is moving too erratically for that.
The arm is moving too erratically for that.
The arm is moving too erratically for that.
The arms are moving too erratically for that.
The arm is moving too erratically for that.
The arm is moving too erratically for that.
A Grimswarm orc raider flinches away, unnerved!
That may not be wise. I hear demons get angry quickly.
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