I have ever triple triad card atm, I don't think NPCs need a rate increase because it's 41seconds on average to play an NPC and they're best played against when you are waiting on qued content.

I also do not think trials need an increase, as they will reliably drop Ex trials in 10-15 runs. The one exception being Thordan who takes an unreal dedication to obtain.

Square has taken our critism of cards locked behind Heaven on High and Eurika by giving us an NPC to play to earn those cards for that content.

However, dungeons are an area where the rate can most certainly be improved. It is somewhat frustrating to dedicate 30-40 minutes per run to be not given a drop. When there's a larger time investment the normal NPC drop % rules shouldn't apply.

Adjustments I'd personally like to see are 4* card deck allotments and nee catd varients like job cards and locales. I'm bored with the game atm with no cards to earn