So I used the string you suggested and put it as a macro, have tried with a dummy and seems to work. Will go into A11 normal to see if it works during the lapis/shield phase.

I also found this other macro somewhere online, seems useful as well:
/micon "Shockwave" pet Garuda-Egi
/pac "Shockwave" <t>
/pac "Aerial Slash" <t>