HELP WITH SPELL MACRO

[Thiaguin-]

HELLO
HELP WITH A MACRO!
i need create a macro that makes "exevo mas san" when there were 3 monster attacking me

thanks for ur answers

2000 {Mas San} Creatures.ByRange(<=3)>=3 Self.Mana()>=200 Self.Say(Exevo Mas San)

try it , in <=3 range say exevo mas san if have >=3 creatures..