The crypt beetle is a not entirely inspiring card. At level one it has 1 attack, 1 speed, 1 shield and two health. The shield ablity means that 2 health might last a few hits, buuuut one or two hits from a magic attack and it's gone. It makes an okay front line in really low mana fights. (And honestly, okay is being generous in my experience.) I think outside of equalizer fights I rarely use it.
But then you throw in the equalizer effect and it's a great choice for 3 mana!
My opponent decided to go with the Cursed Windeku, and that meant everything had a starting HP of 9. Shield with 9 health, and -1 to magic from the summoner is a great choice. The hungry skull ending up with 9 health instead of it's wussy one hp is also nice.
Round three and the crypt beetle is still alive for now. But when it goes down, there is still quite a few beefy dudes waiting.
So a three mana starter card, soaked up 3 round of damage, which is awesome.
I would also like to give an honourable mention to this damage absorbing bloated riftwing. And the 17 health life sapper. It's silly.
Thanks for reading!
And a question for you! What is your fav battle condition?