Nagakabouros' Will

Summons a tentacle of Nagakabouros in unoccupied point with in range that you can see. When summoned it strikes as a reaction the tentacle strikes at two squares in a 10 feet line around it of your choice forcing anyone in its path to make a Dexterity save and take 1d8 cold damage on fail and half on a success. On your turn the tentacle can make a slam on another two squares in a 10 feet line around it of your choice. As an action as long as the spell is active you can summon another tentacle in unoccupied point with in range. It behaves in the same fashion as described above. As a bonus action you can dismiss one of the tentacles. For every tentacle that hits the same target on the same round deal an extra d6 cold damage. You can summon up to 3 tentacles.

At higher Levels: for each spells slot above level 2 you can summon 2 more tentacles. If the spell casted with a 6th level spell or above the tentacles do 2d8 cold damage and 2d6 extra cold damage. If casted with a 3rd level spells slot or above the duration is 10 minutes

Prerequisite: Worshiping Nagakabouros, Spellcasting