>>40556019>>40567462>Cancel is overpoweredIt is, but the entire point is "give the Beast Killer an ability that counters Beast Boost", and it makes sense for something like Silvally to be broken. An Unaware clone is more realistic, but that doesn't handle Speed changes (and those are hard to work with in doubles). You could also try applying Psych Up on entry.
A buff I considered for RKS System was letting the Memories change Silvally's type when they're used as items, not they're equipped. This is particularly good in single-player, where it lets you change types in the middle of a battle. And optionally
let Silvally also equip Memories to gain a second type.