Koloss

Very interesting, but why did you make it blue?

For each of the 3 metallic arts, I chose 3 colors to represent it. I'm using URW for Allomancy, BUR for Hemalurgy and GUW for Feruchemy. This card was one of a set of first drafts (~75 cards at the moment). I'm actually hoping for input on the full set, either for balancing, or other ideas. I will probably start up a thread for assistance in the near future... getting artwork for all the cards will take some time.

What about making a Thug? I'm thinking give him a pretty ordinary base power/health and then add "Spend x red, gain x/x till the end of the turn." (since metal is red.)

I've created most of a set. Still trying to work out the kinks. Right now: Thug 1RW Creature Allomancer 3/2. RR: Thug gets +3/+0 and gains Trample until end of turn. If Thug attacked this turn, Thug does not untap at the beginning of your next untap step.

Suddenly I want a mistborn-themed magic deck.

Color-wise, Koloss are an interesting question. The process of making them (murder five people in a way that basically destroys the minds and souls of all of them) is very Black, but their actions are very Red. And, since there's huge armies of them, I'd expect a relatively cheap Common...

Aww, man. Now you've got me thinking about Magic design again.

Is there any way I could put this card into one of my decks or is that against the rules? Because that is really cool but I would have expected to be a black card as well.