Trick or Treat Map and 16 Towers in Soulkeep
Trick or Treat Map that has about 16 Position to place tower you may use it well if you have a good plan to use cards and if you know got cards from market it will have much mana to be used as these towers are expensive and need more mana so you will not add much towers and use all positions available.
So I have used common Cards to try to fill the map with towers and this will be in the beginning of the level and after that you will have more mana and the use of them will be to upgrade the owers this will be the good option to do as there are high number of fiends in this way so you focus on giving more hits other than high damage.
In this level most fiends are from common type so using common towers for them will be the best choice as you don't need strong towers for those epic fiends that their number will bot pass 20 and leave the hundreds of Fiends enter your gate.
As I have said of you have extra mana you will upgrade towers and this would be so good in attacking epic fiends because as fiends walking in the way to gate they will receive hits from about 16 Towers and 4 of them will be equal to damage of strong tower like Amped Zapper and Twisted Tempest.
I recommend some towers as I will play with them also and they are Charnel Pit as it is the strongest common tower for me with its speed and damage and second one Fountain of Terror and I also recommend Card Sharp because its magical damage should not be neglected and last tower to be chosen is Gloom Owl as you have started the game with in level 1 and I hope to finish the level with also.