Yes, the 0/4 is from one pool of bonuses. The cards that can appear as a reward for beating on a particular difficulty are from a different bonus pool and in addition playing on higher settings nets extra cards for finishing the hive (+1 for advanced, +2 for insane and +3 for master).
You can exhaust the first two bonus pools but not the last.
Wait what, you get extra cards in escape depending on the difficulty?
Yep with higher difficulty you play the more cards you get.
I did not know that, good to know.
That’s why people do master clock runs as you get 5 cards for a a short run.
Yes and those work for any hives unlimited times.
Also a good hive to play is one that doesn’t have Ironman. Like LE.
Or the clock because it is fairly easy even on master.
Might have to break down and do surge or clock runs again.
Yeah but I just hate that hive mate. I don’t know why.
Yeah I can’t do it. I know it’s an easy way to get cards but is it really worth it? TC always nerfs things just when we manage to lvl up. If someone says let’s do surge runs, I’ll do it but on my own…nah!
I think I might just try and play for fun again instead of the constant grind.
With the new level 20 and now that i can play any class with anyone, i really want to max all classes, but horde is just too inefficent for it and theres no way i can get all the coins needed to level all the cards up with them.
U also get 6 cards for doing a master decent run, if u have a good lvl nomad its even easier.
Just use boltok stun and execute everything.
Easy? Do you have blindfold on? 
.
I usually play without a blindfold, it is easier to see that way 
So I just went to do the daily challenge and it says my double cards are 4/4, does that mean I got them? It’s odd because I haven’t finished regency on frenzy or master at any level. I did a frenzy run that I failed yesterday on wave 6.
You get double skill cards in horde up to 4 per day no matter what difficulty or map.
Lail and myself suspect the cards awarding on any map is a bug.
If I joint a custom horde or escape in the middle of the game, will I still get those daily bonus card? Or I need to start one or join 1 from the beginning of the game?
If you mean the /4 bit, I think any time you would earn a regular card (5 waves) it gives you a bonus. I presume if you finish frenzy you wouldget the all 4 of the bonus ones (as frenzy gives 1 per per 5 waves, so wave 5 and 10 and then if you finish wave 12 gives an extra 2), I imagine TC’s bonus card system doubles it but I am not 100% on that.
In escape its 1 extra card per act you complete and must be the daily (or weekly) hive. If its a 2 act hive and you miss the first act you would only get a bonus card ofr the second act.
I haven’t done a heap of testing with this so anyone feel free to chime in if the results aren’t matching what I am saying 