Banner of Pircing Ice

The banner is old and has clearly seen battle. The dark blue cloth is thick and sturdy, and the maker seem to have valued practical use over beauty. It is attached to a spear the handle raped in leather the tip shining and sharp and seam unweathered by time 

 

When wielded in melee, the wearer is granted see invisibility you see invisible creatures and objects as if they were visible, and you can see into the Ethereal Plane. Ethereal creatures and objects appear ghostly and translucent.

 

When you hurl the banner and speak the command word, it transforms to an icicle that extends out to 100 feet. Make a ranged weapon attack against the target on a hit. 

The target takes damage from the spear plus 5d8 cold damage and freezes the target, becoming grappled for 5 rounds or until any non-cold damage is taken.

 

Proficiency with a Spear allows you to add your proficiency bonus to the attack roll for any attack you make with it.

Notes: Sense: Truesight, Bonus: Magic, Damage: Cold, Grappled, Damage, Debuff, Combat, Thrown, Versatile, Sap