Tutorial/Abyssal Riftlines

Abyssal will lurks constantly beyond the "border," keeping a watchful eye over the world. These Riftlines are the probes they extend from the fissures.
Use Spireblooms to unleash kuuvahki lightblade(s) and sever the weak nodes of these riftlines, or unleash sufficiently strong kuuvahki currents to eliminate them.

Sometimes, living beings bound to these Riftlines will be affected by abyssal will and lose control of their sanity. Affected enemies will become more vicious, once-friendly allies may also turn berserk.
When encountering such situations, sever the Abyssal Riftlines to block this malign influence.