TIP all you have to do is build as many crypts as you can and upgrade them to ghost crypts which recharge faster and have more damage. If any one has good strategies for temples pleas tell me i urge you to try this game if you have never played it.
temples are good if you need mana, and have a lot of gold, you build a temple and get 20 mana. You need to get the upgrade first obviously.
Actually in this game you need all three sets of towers. I prefer AoE over direct damage, although a critting ballista does good for brilliant rating vs a ninja boss.
