The Goblin Mech is a highly underestimated card. I have it at level 8 and there it comes with stun abilility in addition with piercing. According to the ruleset it can be pretty powerful. I'm working to develop Merdaali Guardian so that it has shield repair. That can also be a very powerful combo especially in games without magic.
I have picked this post on behalf of the @OurPick project and it will be highlighted in the next post! 