What I'm looking for is a way to do an "IfExists" check on the current target. The goal here is to differentiate between when the tank is leader, and when I'm just running 4 shammies in BG's.

The goal is to cause spells to FAIL when the tank is in group and leading (and targetted - it's a nofocus thing), but to SUCCEED when anyone other than the tank is leading.

/clearfocus
/focus Teezee
/stopmacro [focus]
/cast [target=targettarget] [] Chain Lightning

Logic here is...

Clear Focus
Focus Teezee (if he's not there, he won't be focused)
Stop the macro if something is focused...
Else..
Cast Pew Pew...

That look right? I'm pretty sure I haven't broken any rules as far as conditions...