The Dragon Lady has items

[BB Shockwave]

If you want to try out different sets or different units, go into the floating tower in Debir (Orcs on the March). You can purchase units and spells for 0 gold in all levels, to use against the enemy hero on every level. It's a fun "Game" in the game, as the Caretaker puts it. Plus, he says all your dead units will be resurrected in the end. I am only level 2 yet so have not tried (the first enemy is level 7.) Basically, you can try out different unit combinations there.

[onepiece]

Looked at it but haven't tried (I also was level 2 XD). It looks like a good idea.

This expansion is turning more as a : Put different ideas and different type of gameplay instead of your more basic and "linear" expanded game with just more things. Which is a great thing!