Specific fishing macro question

[Elvenbane-veknilash (Elvenbane)]

@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.

Per the pin: macros cannot check if a buff is active.