Shapechange-Succubi or Incubi

Shapechange-Succubi or Incubi can only target a Changeling creature.
Enchanted creature gains doublestrike and "{2}{b}: Enchanted creature cannot be blocked" They are also a Succubus or Inccubus in addition to other creature types
{b}: Return Shapechange-Succubi or Incubi to your hand.
"But Succubi don't have tentacles in this game!"
"They do now." -Player to DM, trying to get their changeling to have multiple attacks.