Listen first off I love this set, the hunger is great, my only problem is the up time. It's up for 5 seconds, the hunger is lucky to be able to get one hit off in that time. God forbid if the enemy it goes after is a short distance away.
I'm not talking major tweaks, The spawn rate is fine, I was surprised but on a high crit build it spawns in an awful lot. It just needs either
A: More up time and a matching cool down, or
B: Faster animations so it can actually attack.
I realize doing either would probably mean more tweaks to its damage, but honestly I feel it'd go a lot longer for viability.
Ah well those are my thoughts on the matter, You guys have any thoughts on the defiler set, or summon sets in general?