Interesting.
Is there any reason to choose one exit/gate over another?
I wish passive cards weren't as much of a bother, I can't tell at a glance if a new card is passive or not and even if I could I'd still need to move selection away from the passive card. Having a separate unselectable section for passives might be better. Currently I'd recommend playing with an autohotkey script or something that constantly scrolls up for you.
Using cards in quick succession seems to sometimes make only one card play.