49 level 1 Strongholds of shadows. 1 fully upgraded castle 4-8 frostland attack buildings level 1 The reason for so many attack buildings is to raise your hit ratio to mid players (~18m cs). Make sure one attack building is an eleven temple for 26 attacks per unload.
Lvl did good I thought and that way you don't have to spend 150bil for a little increase versus spending 60bil and getting a larger bonus