So I got info regarding this.
It's not that Wiimmfi's wonder card is special or anything. What is important is the act of receiving it.
(or alternatively, injecting it into the correct spot, which can be done with BlackShark's code)
The person who shared these screenshots with me used the premade Lock Capsule above (instead of the Wiimmfi one),
then received it via Slot-2 Distribution.
Despite it being a regular looking card in code, it still became the fancy looking card, with the View Lock Capsule status text being there.
edit: For the record, the PCD above didn't do anything special. Didn't utilize a special type or anything.
Just switched the type to item mode and set the distributed item to Lock Capsule.