critical attack should be fixed; a behemoth with +6 critical egg just killed my entire front row,all full health and 10 levels above me. the freaking behemoth striked like 15 times at em.
The End;
-have everything upgraded to max.
-focus on increasing mana in battle to max.
-you can place the extra stuff too (trap,cannon,shield)
-when the End comes,keep spamming only angels and hobbits while angels are cooling down.
-keep firing arrows at it,you can hold A and then click aside of the game to exit,then click back in: you'll have a automatic arrow fire :D