The strategy this time was very much focused around the supporting ice and life towers which were both very necessary. Without ice, it is likely that some of the ghouls might have got through due to their speed and without life, there is no way that the myth and fire towers could have given enough damage to defeat the level.
Aside from the ice and life towers, only the Epic Fire Pet and a few myth towers were used as the source of damage. They may not seem like much but with the fire taking out the larger groups of weaker enemies and the myth focusing more on the larger targets, the strategy was effective.
Hopefully you enjoyed and I will see you next time.