Guild Wars 2

notice it never roots for duration if at all. could be being cleaned. but maybe it is one of those skills with weird wording.

The tooltip can be a bit misleading on first glance.

Essentially, the impact of the glue will cause a 1 second immobilize to anyone in the area of effect. Anyone remaining in the area of effect after the impact will then have a 1 second cripple applied every second.

So, you can kind of look at this skill as two individual skills. The first skill is an instant AoE that immobilizes for 1 second. The second skill is an AoE with 6 second duration which applies a 1 second cripple every second (meaning it effectively cripples anyone who stands in it, but their movement will be restored when they move out of it).

I didn’t test this before posting, but I believe anyone moving into the glue field after it has already hit the ground will only be crippled and not immobilized. As such, you must hit them with the AoE directly for the immobilize, and it is only of a 1 second duration. After that, it will leave anyone who stands/remains in the field crippled.

Cripple does not affect your dodging, so players can dodge if they find themselves stuck in the field, meaning they can avoid most of the slowing effects if they really want to. However, one can consider getting the enemy to waste a dodge in such a fashion a very good thing, and you can use it to try and force people to move in a particular direction.

^ sums it up very nice.
You are right if you hit someone with the Aoe it will immobilize them, if they walk into the glue it will only cripple them.

Most of the time, for some reason, ppl will dodge out of the glue so you don’t get much crippling power with the skill alone but it does go very nicely with the Vuln/Cripple on immobilize traits, then just always aim to hit ppl with the glue.