pokemon card 151 booster box sv2a pokemon card 151 TCG - plus 9 of the OG Pokes including Mew ex and Alakazam ex sv2A - Pokemon TCG -

5 BlackWarGreymon (X Antibody) (Alternate Art) -$33.70 Being the boogeyman of the BT11 format, you would expect the boss card of the strongest deck to be the most expensive

When your opponent activates a Spell/Trap or monster effect while you control only EARTH Machine monsters, except this card (Quick Effect): You can negate the activation, and if you do, destroy it

There is a decent amount of volatility in the graded card market, and at any given moment, a graded card of yours could gain or lose value in one day

I talk about the cards in collector number order, so first colorless, then monocolor, then multicolor