Death Predation

Death Wave is an unnamed Death Magic Spell.

Description
A spell in which the caster release a wave of Death Magic that takes the life of victims standing by. However, there is a limit to the area which this affects. Natsu Dragneel was able to escape this spell due to having Igneel's scarf on, but it turned black instead.

This spell also seems to knock out anyone that is close to the area of effect of this spell.