just thought of an awesome combo, a SM/Tau army is fighting nids. space marine libby casts enfeeble on harpy or crone, a Tau marker light hits the nid flier, fails grounding test, takes ST9 hit, instagibbed by a ST- weapon!

I will make it my mission in life to make this happen!

Oh, sorry about the misdirection, it shoulds been super anti nid combo