PX + QS + IF = slowfinite?

So... I think I know why they nerfed QS's black damage when they dropped his casting cost.
For 5
AP (with 4 locked tiles) you can swap two tiles and do a small amount of damage.
PX, when at a low enough level, can grant 5
AP to QS if he is the strongest color.
IF can create match 5s and fill the board with black for 5
AP.
Every match 5 from IF creates an exploding head + 5
AP.
It works, but MAN is it slow. the board gets drained of purple pretty quick sometimes, forcing you to just swap tiles to make match 3 blacks. Yes, this means you can keep swapping for a long time, but it takes time to scour the board for the right matches. You also tend to lose locked tiles when you use IF's purple. Most of the time I tried to hold on until the board gave me a match 5, but that takes a lot of time to plan out.
Instead, I was using OML, IF, and QS. This isn't a true winfinite combo, as it isn't self-sustaining, but you can build up 20
AP pretty quick with a double cast of IF's purple. You match away anything really dangerous, drop a black strike tile set, and then just go nuts swapping to make black or purple matches (which will actually hurt with OML strikes).
For 5

PX, when at a low enough level, can grant 5

IF can create match 5s and fill the board with black for 5

Every match 5 from IF creates an exploding head + 5

It works, but MAN is it slow. the board gets drained of purple pretty quick sometimes, forcing you to just swap tiles to make match 3 blacks. Yes, this means you can keep swapping for a long time, but it takes time to scour the board for the right matches. You also tend to lose locked tiles when you use IF's purple. Most of the time I tried to hold on until the board gave me a match 5, but that takes a lot of time to plan out.
Instead, I was using OML, IF, and QS. This isn't a true winfinite combo, as it isn't self-sustaining, but you can build up 20

0
Comments
I swapped in OML as well, but removed IF instead of the professor. I was able to get 10K damage easily on some swaps due to PX blue and crits on OML colors.
Would let QS tank black and as long as you mind your leveling you should be able to make black the strongest color.
Thor provides potential for more match 5s and it makes sure that any color you match up will be put to some use in some way.