@geitner10 - on levels with a lot of cut out objectives you want to get the mana bonus from the undead and the cut out talents from orcs. Cut out your well first then gold mine before you decide what to do next. The towers that are furthest from your base or closest to enemy spawns will gain xp the fastest so you generally wanna expand your towers outward starting near you main base to avoid stunting the grown of your inner towers. Lastly, you can always do previous missions more than one time to level up and get more talents if needed.
Would it be possible to allow players to attach an auto cut out to mana wells, gold mines, and npc spawners so that the game will automatically cut out when the player has enough mana. In order to maximize mana or gold it is necessary to use cut out as soon as it is available. With that said it is sometimes impossible to use the "attack" option to skip to the next wave because of having to keep an eye on mana for cut out.