Fey'ri (Daemonfey) for 5E (P.E.A.C.H.)

[eleazzaar]

1- Reduce fly speed to 30 feet. This way it's still useful for getting around terrain but they stay at normal speed. Wood Elves and Aarakocra would both be faster.

Good...

(b) Any creature interacting with a disguised Fey'ri may make a Intelligence save equal to 8 + the Fey'ri's proficiency bonus + the Fey'ri's Charisma modifier to notice something "off" about their form, as the weakened Succubus blood makes the disguise imperfect. If combined with 2 (a), this could go away at level 5.

Even if the form is perfect people should get a roll to recognise that people who they know are suddenly acting strange.

That would probably be roll Wisdom (Insight) vs 8 + Charisma (Deception)

Also, I have totally forgotten what ASI stands for.

Ability Score Increase