Macro for Great Weapon Fighting with Explosive Weapon

Hello there! I am trying to make a macro that combines the reroll of Great Weapon fighting (rerolls damage rolls of 1 or 2 once) on a magic Maul that has Explosive weapon damage (adds an additional d6 of damage for any 6 roll).  Here is what I have so far: /me attacks @{target|token_name} with his Runed Hammer Attack: [[d20+9]] | [[d20+9]] Damage: [[2d6!ro<2 +5]] + [[2d6ro<2]] on Crits This has the "!" for the explosive damage and the "ro" to only roll once if the damage is a 1 or 2.  The problem I am having with this macro is that it will not reroll the damage on the explosive damage.  If I roll a 6 (which would give + d6 more damage) then roll a 1 for the explosive damage roll, I want it to reroll that damage roll once, but the macro above does not. Any help or ideas? Thanks!

Are you sure the system lets you reroll on exploded dice? That seems very generous. Back to roll20 specifically: You cant do this with a macro. If you're GM is a Pro user, it would be possible to make it as an API script (though it would still need to be custom created). The best you can do is output a button with each damage roll, that lets you manually roll an extra d6. Create an ability on your character sheet, call it d6, and include the text  /roll 1d6!ro<2 Then add the following to your damage roll: [Extra Dice](~NAME|d6) Replace NAME with your character's name exactly as it appears in the sidebar list of characters.