Tendrils (5e Feat)
From D&D Wiki
Prerequisites: Must be an abberation
You begin to grow a tentacle, this can only be used to grapple enemies. This feat can be taken more than once, everytime it is taken you gain a new tentacle.
You can use this tentacle to grapple an enemy 10 ft. away from you with advantage. Your enemy must make a strength save against your own to not be caught. Afterwards your enemy suffers a disadvantage in any checks to that they use to try an free themselves from the grapple.