Hey CorpseQ, You can fully customize the toolkit to meet the needs of your game. Out of the box you will be able to create your own boards/arenas, play cards, build some custom cards, create custom decks and vs an AI opponent and more things to get the ball rolling.
If you have any specific features or questions feel free to ask here or via the support email!
Thanks for jumping in @ScaryDoorStudios!
@Laserbeak43 ScaryDoorStudios is correct. You will find the graph section just above the functions section on the left panel in the blueprint editor.
Let me know if you are not seeing this on your end and ill send a screenshot to help!