It is the only CGC Pristine 10 example in the CGC Trading Cards Population Report, with none graded higher
Blast Held by a Tribute X TRAP When an opponent's monster that was Tribute Summoned declares an attack: Destroy as many face-up Attack Position monsters they control as possible, and if you do, inflict 1000 damage to your opponent
If Nicol Bolas gains both abilities, the instances he has are similarly linked
Up to thrice per turn, when you activate a "Purrely" Quick-Play Spell Card (Quick Effect): You can attach that card on the field to this card as material, then you can change the battle position of 1 monster your opponent controls
So long as it sticks to the battlefield, even if you get just one activation, that may be enough to win the game, given how many useful Rats there are