Thuggity Thug [efficient thug builds]

[HoneyBadger]

Amulet of antimagic is nice, period, when building any kind of thug, sc, etc. just for the fact that so many deadly abilities-petrification, charm, etc. are blocked by high MR.

If you've got a unit under 15 MR minimum, you shouldn't build it (give it items, make it a prophet, empower it, etc.) without including atleast 1 MR boosting item.
Personally, I like my SCs to have over 20.

[Shovah32]

22 Seems a fairly good number. Its certainly not unstoppable(as my batteries of magic monkeys casting soul slay will tell you) but it makes you resistant to most basic mages and pretty much makes sure you wont get blasted to death when raiding(unless they are prepared for 22 MR they probably wont have anything on hand straight away to deal with it).
It is annoying, however, when one of your SCs with 22 MR, full resistances, regen, huge reinvigoration and various other buffs goes against a single B3F1(or W1) caster and dies at the cost of 2 blood slaves.