Dangle. An Accursed has advantage on stealth checks if on the roof of a room. It can then drop down onto a player that is unaware of it, gaining  Advantage on its pseudopod attack and grappling the target upon a successful hit.

Pack Tactics. Accursed gain advantage on attack rolls if one of their allies is within five feet of their target

Pseudopod. Melee Weapon Attack: +6 to hit, reach 15 ft., 1 target. Hit: 11 (2d6 + 4) [bludgeoning] damage