Macro to Cast Spell if Other Spell Fails to Cast?

[Elvenbane-veknilash (Elvenbane)]

Short answer: no.

@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.

• There’s no condition to test if PVP Talents are active.
• You could set that key up with a modifier (ctrl/shift/alt) that lets you pick which spell to cast.
• Because IBF is off the GCD you could setup a macro that casts both spells when you hit the key but you’ll be blowing IBF each time during pvp
• If you only want medallion for arenas and not wpvp/bgs you can test [@arena1,exists] to decide which spell.