Time Splice

This spell is volatile. It requires precision and an extreme level of concentration. If one of the component requirements is not met,  or if the spell is interrupted, the spell will not work and the gem in the center will explode into hundreds of tiny shards, dealing 6d10 force and 2d10 piercing damage to anything within 50 feet of it.

You spend 8 hours continuously chanting from the 12th page of the Grimoire of Time and waving a gemstone slowly in a circular motion. You must be at the edge of a salt ritual circle, at least 20 feet in diameter, with six candles placed equidistance around the circle. Within the ritual circle must be at least one living mortal creature, who must remain still for the duration.

At the end of the casting time of the spell, the gem glows an ominous color. It slowly rises out of your hand, spinning faster and faster, absorbing the life of each creature within, one by one. At that time, a gust of wind and a burst of heat and light emits from the gem, snuffing then melting the candles and incinerating the salt and bodies so that nothing remain, but you, your grimoire, and the gemstone.

You gain 5 levels of exhaustion.

The gemstone now becomes the legendary, wonderous item known as "The Gem Span".