Climbing Spikes

1st-Level Transmutation (Ritual)
Casting Time: 1 minute
Range: Touch
Components: VSM (aa metal nail)
Duration: 8 hours

Spikes grow from the boots and gloves of a creature you touch. Until the spell ends, the creature has advantage on any checks made to climb or maintain their balance on icy or rocky terrain, and they ignore difficult terrain created by ice or deep snow. The spell ends early if the boots or gloves are removed.
At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, you can target one additional creature for each slot level above 1st.

Source: Knuckleheads & Other Such Curiosities: A Travelers’ Guide to Icewind Dale