You conjure a thrashing wyrm of frothing water that moves with you, wielding it as an extension of your body for the duration. When you conjure the wyrm and as a bonus action on your subsequent turns, you can cause one of the following effects with it:

Ice Fang. The wyrm grows frozen fangs—jagged icicles that it uses to bite a creature or object within 20 feet of you. Make a melee spell attack against the target. On a hit, it takes 2d6 piercing damage and 1d6 cold damage.

Engulf. The wyrm leaves your side, surging toward a Large of smaller creature within 40 feet of you and attempting to engulf it in a torrent of water. The target must succeed on a Strength saving throw or be restrained. While restraining a creature in this way, the only effect you can use with the wyrm is Ice Fang, targeting the restrained creature regardless of range. A creature can use its action to make a Strength check against your spell save DC, freeing itself or a creature within its reach from the wyrm on a success. When the wyrm stops restraining a creature, the spell ends.

Weird Water. The wyrm assumes a defensive formation around you. Until the start of your next turn, ranged attacks that hit you have their damage reduced by 1d6 plus your spellcasting ability modifier.