Deathspank (original) problems with hero cards

[Zmey]

First of all I would like to say thank you to the Hothead team.
You've done a great job. The game's visual style is awesome and very original. And actual gameplay is a lots of fun (on many levels).
Thank you.

But here's the bad stuff - I think I've lost several hero cards somehow.
As far as I understand I can choose new hero card (or upgrade already chosen) each level.
At the moment I have following hero cards:
-Speed +15% (2 level ups)
-Melee +25% (4 level ups)
-Ranged +10% (1 level up)
-Gold +15% (2 level ups)
-Armor and weapons +2 levels (2 level ups)
That's a total of 11 level ups. But. I'm level 15 at the moment. This means I don't have at least 3 hero cards.
To think of it, several times through the game I had a feeling that I'm choosing a hero card I already own.
I don't know, maybe I've lost more that hero cards. Cards are easier to track.

Also I have worries about "Recycling 101: Tin Cans" quest. I've grinded about 10-15 tin cans into gold. The ones I found before getting the quest. Now I'm afraid that I will not be able to find all 50. Am I right or there's much more left in the world?

[Amander]

The cans just randomly respawn now and then, so you can quit the game and continue to make the game repopulate the world if you lack cans.
As for the cards, what happens when you do level up? For me, I picked the last card at the last leveling up.

[Zmey]

I found out that orques drop cans from time to time. So I guess no problem with this one.

When I level up I choose a hero card. But I have strong feeling that some card were chosen twice.
For example:
I play for some time and get couple level ups. I'm pretty sure that one of hero card that I've chosen during this time was "you can equip armor and weapon 1 level higher". I exit game. Then some time after I re-enter and play more. I get another level up and among hero cards I see the very same "you can equip armor and weapon 1 level higher" (not 2 levels higher, but 1).
I almost sure that no quest progress or items was lost.
That's when I counted my hero cards and compared them to levels. They don't match.
Maybe during the very first levels there was no hero cards to choose. I don't remember.

[Trojax2010]

I don't think you are counting them right... I think its 4 level ups for armor and weapons(2 for each) and I am pretty sure speed is 3 level ups (5% each one) . Ranged looks ok. Not sure about the others.

[Zmey]

Oh!
You're right. Speed starts not with 10% as melee and ranged, but with 5%.
And also I didn't noticed that first time you take Eubric's card it is applied to armor only, and second time to armor and weapons.

Thank you. I wasn't paying enough attention after all.
Sorry for bothering you all.