Is “Succubi” a Scrabble word?
Yes
SUCCUBI
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Succubi
/ˈsʌk.jəˌbaɪ/
noun
1.A female demon which comes to men, especially monks, in their dreams to seduce them and have sexual intercourse, drawing energy from the men to sustain themselves, often until the point of exhaustion or death.
2.A strumpet, whore or prostitute.