So I decided to go for the perma ticket gacha after all.
Picked up Pymgy chan, because mofus.
Have enough RC to pick one more, but for now I will wait again for lady luck to show some favor. I would love to pick up Wallnut, but that can be done later down the line.
So atm, Dusty Miller and Wallnut are the two I have on my radar.
Since I decided to go full 4 crit team, I will slowly transform my counter team as well, with the intent to have 3 regular crit teams, and one that is loaded with 1st turn Crit buffs, since those tend to be massive, but only for the first turn (Things like Dusty Xmas, Accaccia, Corn cockle, etc).

I was also considering to open up 1 space in each team (exception might be the 1st turn one), to add one Barrier girl.
Now there is no second Barrier+Crit other than Kuko, so these girls would not benefit the damage output, but that Barrier skill is very very usefull and for a squishy team like a crit team, it can be the difference between surviving one turn to nuke the enemy into oblivion, or not.
*Seems like I will be skipping on the whole Kerria hype train after all*