call to arms
When I first got my Imps, I used 4 slots: Acc/Dam and Dam from Blood Mandate, Acc/Dam and Acc/Dam/End from Brilliant Leadership. That gave me small boosts in the two areas I needed most, 4% Regen, 1.5% Recovery. I later added a slot for Recharge.
I'm currently running 3 Acc/Dam Hami-Os, 2 Recharge, but I'm waiting for when the Soulbound Allegiance set is fixed to work in Imps to throw those in.
LOCAL MAN! The most famous hero of all. There are more newspaper stories about me than anyone else. "Local Man wins Medal of Honor." "Local Man opens Animal Shelter." "Local Man Charged with..." (Um, forget about that one.)
Guide Links: Earth/Rad Guide, Illusion/Rad Guide, Electric Control
I 6-slot Blood Mandate for the fantastic +def bonuses. I wouldn't change it even after they fix the Soulbound set, but if you're not actively seeking +def, frankenslotting is prolly the way to go (3 Nucleouses and call it a day).
An Offensive Guide to Ice Melee
Expedient Reinforcement
Available at lvl 30-50
Call to arms at 4 slots gives you +HP and + recharge. You'll need a 5th slot to round out the enhancement percentages though, because the enhancement values for that set at 4 slots is pretty low.
what is a good IO set for imps pre 50