I printed a card divider for my brother in law but it didn't fix his deck case. So I designed one myself in Fusion360.
Mana symbols are found here. Top outline is taken from @Fabian182_603308.
Used filaments are PLA, in the brands / colours: Jupiter white, Jupiter black, Jupiter red, Jupter dark blue, Polymaker Wood Brown.
The author marked this model as their own original creation.