Ball of Annihilation

If the Caster falls down to 0 HP or lower, the spell is triggered. A pure-black, everything absorbing ball of shadow is hurled towards the Person dealing the killing blow at a speed of 30ft/turn. It tracks the Target until it hits it or another living being in its path. On impact, it deals "Target Level x d20" damage. The Target can try to evade the spell with a DC20 DEX save.

level 1: 1d20, level 2: 2d20....

This spell can only used by Characters owning the Wondrous, legendary item "Koraktor"