Ring of Flames

A brilliant red gem set in a gold band, this ring gives
off a faint warmth.
•The wielder has resistance to Fire damage.
•Once per long rest, When the wielder sustains
any fire damage, the ring gains a charge. This may
be spent to add 2 spell-levels to a fire-based spell.
•If casting a spell that causes fire damage, the
wielder may re-roll any 1s on attack or damage rolls.