User blog comment:Ricoindigo/WORK IN PROGRESS : Mage update patch for Season 6/@comment-24385282-20160129231851/@comment-24785464-20160131072746

@Primus yeah you're right, that rank 5 cd is actually too small if the duration is kept at 7 seconds, especially because it provides a 45% slow. I love the idea of Cassio zoning so well with her poison to either force the enemy team to engage to avoid her poison to eat throuh their entire health bar but I think I will adjust the cooldown, with the other option being to adjust the slow... Even though Boots of Swiftness are a thing :P

What if Miasma has a static cooldown though? I would basically discourage any CDR build on Cassio unless she wants to have more Twin Fang uptime.