Why is Silvally in low tiers?

Question

Most if not all of the Silvally types are in NU or lower, and Silvally Ice being in the lowest tier after LC (does LC even count as a tier). Silvally is literally a legendary and Type: Null is in higher tiers than some of the Silvally types.

Comments

Silvally needs to hold a memory to be a different type, so it can't hold a better item like leftovers or choice scarf. It also can't learn stealth rock, recover, or a lot of strong physical moves.

Answer 1

Silvally has balanced stats. While this isn't a bad thing, it means it can't excel at any one thing, and thus has a harder time finding a niche. It can be good at quite a few roles, but that's all it is. Good. Not great.

Type: Null can use Eviolite. This boosts its defenses, and allows it to have an easier time Toxic-ing the opponent, lowering Defense with Crush Claw, or what have you. Type: Null is slower than Silvally, but it still serves a viable role (not great, mind you, it's still in PU).

So overall, Silvally doesn't excel at any one thing, and cannot use the Eviolite like Type: Null can.

Hope I helped!