The Spirit Realm

How is slow calculated exactly?

The spiders in Valdeholm for example are only slighty slowable. So is Lassitide sufficient to get them as slow as possible with it 25% slow?. Or should I use my usual full slow?

It's multiplicative. So Turgur's at 75% will still slow it 3 times as much as Lassitude at 25%.

Turgur's is a 75% slow so on a mob that doesn't mitigate, that mob will be slowed by 0.75, hitting at 1/4 of its usual rate. With Lassitude, it'll be hitting 3/4 of its usual rate.

Hmm... ok, assuming that "slightly" means "25% slowable"... With Turgurs, the mob is 0.75 * 0.25 slowed, i.e. 18.75%. The same mob with Lassitude will be slowed by 6.25%. To be honest, neither will make a huge difference on normal xp mobs. But Turgur's maintains its relative power.

What I mean is, assuming that "slightly slowed" means a fixed max slow rate, which would be reach by Lassitude, it would make Turgur senseless?

So if slightly slowed means a max slow rate of 15%, which is covered by Lassitudes 25%, why cast Turgur? Is a slightly slowed mob really three times slower with turgur then if slowed by Lassitude?