Soulkeep - Passed Level 4 and 3 Spells Available

I have passed level 4 and now I am just a step away from reaching league 2 as all I have is level 5 which seems to be so difficult as hearts decreased to 10 and also it has 8 waves to be passed so it needs a good strategy and aggressive defend from towers to be able to survive till wave 8 in that level.

But the good thing in that level that a new spell unlocked and this is so impressive and what I need to choose a good one as towers is 4 and spells is 3 so if I have good deck I can pass this level and killing more fiends.

I will have a try with common cards available for me then I will get from the market what I need but I will try first to be more experienced about this level fiends that no legendary one in it as I have checked league Icon below and see how much fiends I need and How much fiends for each type.

I have a close league at league section to see how much fiends should I kill to be able to pass this league and it seemed the mission on its halfway as I have found that I need to eliminate about 1200 Common Fiend and 250 Rare and 14 Epic.

As you can see above only one level remaining which is level 5 this means that I need to eliminate all those fiends that overall about 1500 in that level so this level will be extremely hard but the light spot that I will gain more mana so I need to prepare a good deck to be able to upgrade and put a good towers in all the map in facing those huge number of fiends.