Ring of Spell Storing

Attunement
This ring can store up to 5 levels worth of spells
at a time. Any creature can cast a spell into the
ring by touching the ring as the spell is cast. The
spell has no effect, other than to be stored in the
ring.
While wearing the ring, you can cast any spell
stored in it. The spell uses the stats of the original
caster, but is treated as if you cast the spell. Any
spell cast from the ring is no longer stored in it, freeing up space.