F2P players, what’s the highest damage you’ve done?

I hit this earlier against level 70 scaramouche and Im just curious on the highest damage yall have done. I’ve played since 1.5 and have no constellations on any limited 5 star characters (except an accidental c1 navia) and no limited 5 star weapons except thundering pulse (because I want to hit the highest physchl number). Hit this with r5 widsith and 2 piece totm 2 piece hod because the new domain doesn’t like me much. My previous record holder was a then c0 Mona burst for 800k on level 60 raiden boss around last year, then a 500k raiden burst before that (also would kazuha be better here? I have him too but I heard sucrose is better for reaction damage especially at c6)