Can I choose what traps to set?
When you move into the new dungeon, you need to choose one of three sets of traps which you can buy for gold or orbs. With each set, you also get a pre-made traps placement. Therefore, you cannot combine traps from different sets, but you can choose one which best fits your needs. You canchange the set of traps in Edit mode.
Please note, that choosing "Best Defenсe" doesn’t guarantee an unbeatable dungeon, although the traps layout will be harder than in the first two sets. To make a truly hard dungeon, you have to rely only on your own skills and experiment with traps.