You just dont want to attack anybody or what? In advanced attacks you can set your exori for example when monsters >3 in range 1 sqm use exori. And same for solo monster you can use exori ico.
@EDIT
1000 {exori if 1 player on screen} Self.Mana()>=115 Creatures.Beside()>=3 Creatures.PlayersOnScreen()=1 Self.Say(exori)
1000 {exori ico} Self.Mana()>=60 Creatures.Beside()>=1 Creatures.PlayersOnScreen()>=1 Self.Say(exori ico)
Maybe this two macro in same time.
@EDIT
1000 {exori if 1 player on screen} Self.Mana()>=115 Creatures.Beside()>=3 Creatures.PlayersOnScreen()=1 Self.Say(exori)
1000 {exori ico} Self.Mana()>=60 Creatures.Beside()>=1 Creatures.PlayersOnScreen()>=1 Self.Say(exori ico)
Maybe this two macro in same time.