I bought Realm Minor Adventure and Estate cards but I can't find where to craft thoose, and it seems I don't even have them to use on a Realmic Transmuter...
The other commentor didn't really answer your question.
Those two bundles are sets of three cards, not cards themselves. If you click the arrow next to the name while at the Watch, it'll show you what you bought, but they're added to your Minor card craftble list on purchase.
After learning the recipe in the Progression menu you must craft the cards at an Enchanters Focus bench, each card is a single use resource so you may want to craft multiple to use later. Cards in your inventory have a tab to themselves, and unlike consumables they wont show up while transferring to an inventory like a chest. You can however drop cards for other players to pick up off the ground.
The other commentor didn't really answer your question.
Those two bundles are sets of three cards, not cards themselves. If you click the arrow next to the name while at the Watch, it'll show you what you bought, but they're added to your Minor card craftble list on purchase.
After learning the recipe in the Progression menu you must craft the cards at an Enchanters Focus bench, each card is a single use resource so you may want to craft multiple to use later. Cards in your inventory have a tab to themselves, and unlike consumables they wont show up while transferring to an inventory like a chest. You can however drop cards for other players to pick up off the ground.