delayed cast

you enchant a small glass jar allowing it to hold the next spell you cast

the next spell you cast is instead put into the jar. you still choose targets but don't make attack rolls.

when the jar is broken or after 1 minute the spell is recast making attack rolls as per the spell

spells with the range of self target the jar

spells with the range of touch target a one viable target. if more then one viable target is in contact with the jar, a target with be selected randomly

if the target of a ranged spell is out of range when the spell is recast the spell is instead cast at the jars location

if the target isn't viable the spell fails