Erosion Pearl

However, his actions were still a little too late.

Matthew opened his mouth as soon as he landed.

In the next moment.

A shockwave containing negative energy shot out in the direction of the Old Bones Dragon's soul fire!

This was an ability that he had prepared in advance when he was playing with the Dimensional Door!

..

[Spell Harmonization: Death Shock Wave and Spirit Pierce]

[Harmonization Additional Effect: Your Death Shock Wave can now penetrate the enemy's body and launch a sonic attack on the enemy's soul.]

[The damage of the sound wave attack was greatly reduced.

[However, it will still cause damage that is no less than Spirit Pierce.]

..

A formless sound wave penetrated through the layers of bones and headed straight for the Old Bones Dragon Soul Fire.

The sound wave wasn't strong. It was even a little weak.