The idea is to create more area's/fields to grind and to trow some differsity on area's.
The way it works is for example :
"turn in 25 Creamy cards to get a lvl 1 teleport
turn in 10 vitata cards to get a lvl 5 heal "
this due to the Vitata being rarer , needing less cards for it.
It should allow for both small quality of lives as well as more different builds.