Tauriel's Ice Arrows

You exhale your breath while holding a drop of water, transforming it into two magical arrows made from ice. They feel cold when touched, are covered in frost, and have a bluish white color with light blue fletching.

As part of the casting of the spell, make two ranged weapon attacks with a short or long bow using the ice arrows. If you are normally able to only make one ranged weapon attack, you are able to make two ranged weapon attacks as part of this spell. 

On a hit, the target suffers the weapon attack’s normal effects and then takes 7d8 cold damage as the arrow explodes inside them. If both arrows hit the same creature, its speed is also reduced by 20ft until the end of its next turn as hoarfrost spreads over it. 

If cast at a higher level, the ice damage is increased by 1d8 on each hit for every level of spell slot used above 6th.