Quote Originally Posted by loldrg View Post
Bio, Bio II, and Shadowflare are the only arcanist spells without any accuracy requirements (technically Physick, Summon I/II and Resurrection don't have them either but good luck DPSing with them). You're getting into semantics with it being a ground effect and arcanist dots not being proper 'spells'. It's tool-tip refers to it as a spell and it has a cast time. If it looks like a duck and sounds like a duck.
Bio and Bio II can both miss, I've personally seen it. I said what I did about Shadowflare, because it doesn't quite work the same way in application. With a DoT, either the whole DoT is applied, or not at all. Shadowflare, working as a buff on you and ground based, is a bit different. So no, not a duck.