Just tried the new ability now and I can hardly keep more than 3 or 4 following me at best. Most times I was only able to have just 2 or 3 spawned at any time, and for the record, my attack speed is currently 2.20/second. Doesn't seem attack speed matters too much anymore!
Anyone find out which abilities are best for summoning the fetishes now? I assume maybe spells with high proc rates?