and burned all my CL soulbound Cards
I did the same...
I think I will only play survival before EOS so even when the cards goes to cooldown, they will get reset when new season starts.
This is what I am doing now. I am high enough in Modern to stay there. Now for some fun.
Are you sure it resets in the new season?
It is based on what I read through discord and none of the team have say its wrong.