Krenko only rare - why?

sutoLkcalB

I never realized this card, but now playing it to fullfill secondary goals:
Krenko, Tin Street Kingpin
I am surprised about the power of that card,
Compared to the mythic rare card Legion Warboss Krenko seems to be more valuable.
Just wondering.

Zzyzzx

I second that, Krenko was a card that I chased for a while and just recently procured.
He's an absolute MUST in a goblin build.