Keeping level 5 units alive

[N3MES1S]

Thats the reason i almost never use level 5 creatures in this game. The problem is level 5 creatures are provided on very low numbers (i hope this will be fixed on future titles lol) , and once u lost 2 or 3 u get lack off stack and cant buy more, so u just wasted money. I love level 5 creatures, but i only can find, for example 20 cyclops, 10 red dragons, 20 trolls and something like that. I ended with 38000 ls, and cant even buy 20 red dragons or 18 black dragons, the only unit that is full of plenty are giants, but they are useless against armored and high level creatures. I dont know if the avenging griffins casted by the royal ones can be sacrificed, i never tried (i never needed to xD, i dont have level 5 creatures) but it will be great (sacrifing 400 avenging griffins should be amazing lol).