Goblin Shaman 3 cast of astral and then attack?

[vmxa]

If they can muster up 650 damage times 3 kills with adren, that seem crazy for a L3 monster. Its attack is 20 and my def was 28. Cyclops def is 95. Not sure how adren works, but that was their first attack in the battle.

IIRC they had around 23 units. Anyway it is the triple astral strikes that makes me mad. How are they able to do three cast and still move and attack?

I also wonder about other attacks I have seen. Just had a summoned stack of 20 Royal Snakes hit my archmages. I think they killed one, seemed fair.

Then the after effects of the poison killed 17? This is a def 60 unit with 150HP under a hero with def 28. In AP that poison would not have killed any mages.

My complaint is that it makes it hard to undestand cause and effect and to use proper tactics, when results make no sense, at least to me.