I also really like Evil Heroes. The Supreme king was the bestpart of the series haha. I've tried to make a successful build for them many times, the problem is that they're just not as supported as elemental heroes and normal polymerization :/. The normal heroes just aren't good, simple as that. Plus extra deck space is always tight...So I've found it's easier to focus on one or maybe 2 Fusions. You can play rock stun with Tour Guides and Doomcalibers and add Dark Callings and Dark Gaia in the extra, but that's more of a tech than anything. The next best fusion is Lightning Golem, he's a once per turn monarch pretty much. He even looks like a mix between Zaborg and Grannel xD. Plus Sparkman and Clayman have the best stats of the normal heroes. So you could try Miracle Heroes with Dark Calling too or something to that effect. Clayman gives an excuse to run that broke Masked Hero too. The best thing about Mask Change is that it can be chained too so that's fun
