User blog comment:Tridan V2/Kelstor, The Mind-Space Emissary/@comment-24420226-20160109010736

He assumably is geared towards being an AP caster, which makes the fact that his W can deal physical damage odd (since he probably wont have much armor penetration).

I'm also not sure if I understand the E correctly. It seems like they can be hit three times with it? Once the first time they walk into it, again if they walk into it a second time (which does double minimum damage), and a third time (doing normal damage) when it collapses?

Assuming the above is true, a single spell rotation has a total potential damage output of 800 + 1.9 X AP with 15% of the enemy's health (before his passive). That's pretty low, especially considering none of the abilities have a low eough cooldown to be used more than once per rotation.