Soulkeep - Survived with one heart and passed Level 4

I was able to pass level 4 and I was so disappointed as I have reached wave 6 which is the final wave with only one heart remaining and this is what made me play aggressively with all mana I had in final wave and upgraded towers close to the gate to defend it well.

I have used twisted tempest the good tower that I have bought it and it really helped me with Card Sharp to be able to defend the gate against these fiends attack and I have eliminated about 360 fiend from different types as I have killed 300 common and the remaining was epic and rare.

I have used also Fountain of terror just two of them between two gates to be able to defend the gate from flying fiends and this was the main use of it and after upgrade in final waves it really helped me to eliminate and kill more fiends.

Upgrading cards is a very good idea especially against Slaying Mantis which is an epic fiend that came in the final wave and I was able to stop it with two Upgraded Card Sharp.

Also Do not forget twisted tempest which was acting as a first line of defense against fiends that came from the main way and with its high range it helped in decreasing fiends health before they came to face its fate with Card Sharp and Fountain of Terror.

For Spells I have used cheapo as once to put Twisted Tempest in the first wave and then I have used Stew of Doom close to the gate to be able to kill the remaining fiends that escaped from towers and closely would enter the gate, Now I am ready to level 5 and I will see if I can got Amped Zapper to be able to benefit from its strong power in facing fiends.