Well, Coinich's deck either isn't right, or it needs work. As I already suggested, he needs to drop 2 steals, a devourer, and an EQ, then add 2 shriekers and 2 dusk shields. My deck will be the same thing, except I'll change a few cards to upgraded versions... I'm thinking the shields and a steal, since they are pretty pricey.
Also he needs to drop the nightmares and add stone pillars. We might give him back the EQ depending on how many he has left.