Pretty much everyone I know who started playing the game asked if there was a way to see, which card effects are active.
For example how many seconds of "Cold Blood" are left,
if "Lone Vigilante" is active or not
if "Surge" is active again.
I would like two card icons left and right to the Aleph signature/health/ammo display, that are greyed out when they are not active.
They could gradually fill up or empty with colour to represent the remaining time until it activates/deactivates for cards with timers.
For on/off cards, like "Battering Ram", Belligerence" or "Lone Vigilante" they could turn from grey to coloured immediately.