You make the earth unsteady, a tremer then massive disruption, drawing from unholy power.
Dev Note:
This could be cast on an area like a graveyard or recent battlefield.
With a sinister intonation, you cast Unholy Ripple, unsettling the earth beneath. A tremor ripples outward, growing into a massive disruption fueled by unholy forces. The ground convulses, a manifestation of malevolent power wreaking havoc on all within its ominous reach.