If «Suppress Vantus Runes»: Vantus runes are powerless against Mythic opponents.; otherwise: Increases Versatility by 6.925 × SP while fighting Fetid Devourer.
Increase Versatility by 0.8829 × SP while fighting Fetid Devourer.
You can only use one Vantus Rune per week, and the effect lasts for the entire week.