"All non-Pillars other than Immolation are allowed."
So it seems they are. Not a big advantage anyway.
I don't think marks are allowed.
1. Gives advantage to experienced players
ex) Plastiqe has 5 fire marks, Rastafla almost has a mark of each element.
2. The whole point of the tourney is to use only quantum pillar to make a RAINBOW deck.
Marks are considered as pillars, so they're obviously banned.
If the ruling is different...
i'm boycotting this tourney I don't care I'm likely to not participate anyway.