Silvally is a pure Normal type, but it can really be any type you want it to be with those memory discs, and Silvally has a pretty neat design. Silvally is also great with battling, with it having nice stats, an alright movepool, and then its ability basically just lets it change into other types depending on disc it's holding. In my opinion, Silvally-Bug is probably the worst, and Silvally-Steel is probably the best/most common. Overall, I like Silvally a fair amount, and whenever I see Silvally, I just think of the edge lord, Gladion, who is also cool. It's just, out of everything left, Silvally just stood out the least, so that's ultimately what made me rank it here at the halfway mark.