Prowl, Shadowmeld and VOP

[Elvenbane-veknilash (Elvenbane)]

Not possible, macros cannot test for buffs.

@Adreaver-undermine

3. Macros - What can they not do?

Macros cannot make smart decisions for you. They can’t cast spells based on cooldown, or check if a buff is active, or magically fit all your abilities onto one button.

You could force Prowl with a modifier though:

#showtooltip
/cast [mod] [nocombat] !Prowl; Shadowmeld