Necklace of Energy

Source: Natalie's Setting

Wondrous item, uncommon (requires attunement)

This necklace in constructed of silver wires woven around a gem. While wearing the necklace your damage cantrips are able to ignore resistance to one type, based on the type of the gem.

d6	Gem	Resistance ignored
1	green emerald	acid
2	blue saphire	cold
3	red ruby	fire
4	yellow citrine	lightning
5	diamond	thunder
6	two gems	roll twice, ignoring duplicates and 6s