Macros can't distinguish between players by class or with/without a buff or debuff. But a very simple one would be:
Code: Select all
/cast [mod:SELFCAST,target=player][target=mouseover,help,nodead] Slow Fall
Change the spell name for Levitate, of course. Then just hover your mouse over each player in turn, press the bound key, and voila.
One problem is that both spells break on taking damage, IIRC, so timing is a critical issue. You'd pretty much have to prioritize critical (tanks for example) or fall-prone players.