Yilx
The stats and the Pokemon go very well. The others designs are really cool too.
The corn Grim reaper is a really nice design. Corn and grim reaper go well together in this art, i think. It does seem like a pokemon with a high SpDef stat. The snake design is probably the best one, imo, but, when you think of its stats, it seems like a pokemon that is fast, hard hitting. Not one that is slow and bulky. When you look at Ferrothorn or, say, Rhydon, you know they aren't fast, but they seem bulky, and their stats show it too. When you look at Zekrom, Reshiram, Kyurem-BW, you immediately know they are hard-hitters. Yilx's pokemon seems bulky, slow and a hard-hitter, which perfectly fits its stats.
Wait, were the stats chosen before or after the Pokemon were designed?