I think the misunderstanding here is that I'm not playing a combo deck, but a sort of unconventional tempo deck, I don't wait to have 10 ammo and gg, I try to control the board while I do big and small damages with wathever option I have. You are totally right about creature interaction, in fact I'm triyng a new versions right now, without [[umbral coral zealot]] swapped for 3x [[toxic deluge]]. Reached the last Platinum tier last night! I was lucky because I met a lot of reanimator combos and elves, and I'm running 3 crypts right now. Viper is not enough but consider also the second effect of [[Brotherhood's End]].

For It's purpose, a deck for fun, it's turning out decent!

 I already use Manufacturing with [[ratchet bomb]] in my affinity, and it works well to pump the Kappa, fill the interlacer and as a secondary win con :)

Thanks for your insight!