Zilliax cannot be discovered?

Hi guys, I recently found that Zilliax cannot be discovered by Omega Assembly nor by Dr Boom Hero Power. I played warrior a lot and not a single time I see him. So, it's a know issue?

Hi,

no, you are just unlucky. Many times I got [Hearthstone Card (Zillax) Not Found] from Omega Assembly or Boom's hp.

its in the bucket for sure.

I've gotten it lots of times.

Ok thx, seems strange I never see him after 1 month but hey, rng is rng. 

Question is kind of on topic, so I'll ask it here: I know class cards show up more often with Discover effects, but is there also some rule/algorithm regarding the actual cards' rarity? Like, a greater chance for common/rare then epic, etc.?

Quote From uhuglue

Question is kind of on topic, so I'll ask it here: I know class cards show up more often with Discover effects, but is there also some rule/algorithm regarding the actual cards' rarity? Like, a greater chance for common/rare then epic, etc.?

Class cards appear 4 times more than neutral cards. Apart from that, 100% random

Quote From Nearthel

Quote From uhuglue

Question is kind of on topic, so I'll ask it here: I know class cards show up more often with Discover effects, but is there also some rule/algorithm regarding the actual cards' rarity? Like, a greater chance for common/rare then epic, etc.?

Class cards appear 4 times more than neutral cards. Apart from that, 100% random

which helps to explain zilliax.  Warriors will be 4 times more likely to have warrior mechs than neutral mechs, and zilliax is neutral.  Thus you are 4 times less likely to even see a non-neutral mech, nevermind for that mech to be the Zilliax