mass team cleanse macro

[Simulacra]

Because /targetparty and /targetraid don't target yourself.

Of course. You need to add a bit of code to make it work, like:

/cast [mod:ctrl,target=player] Cleanse spell
/stopmacro [mod:ctrl]
/targetparty
/cast Cleanse spell

found that on here somewhere back in 08.
With ctrl is just targets player, otherwise it targets the party.