Shared planar deck: Start a multiplayer game and reveal the top card of the shared planar deck
The latter ability is the one that Kappa Cannoneer has, and it makes it a much more powerful threat than its initial 5U cost and 4/4 statline would make it appear to be
Part 7: Stamping Errors WotC added foil stamps to cards to designate them as promotional and in the current days as a means to authenticate the rares and mythics
Otherwise, theyre very underwhelming expensive creatures

Professional grading services evaluate card condition, authenticity, and rarity before encapsulating them in protective cases called "slabs." Key Value Factors: Grade Level : Higher grades (9-10) exponentially increase value Grading Company : PSA typically yields highest resale prices Card Rarity : First editions and vintage cards benefit most Population : Lower population counts increase scarcity value Market Timing : Current demand affects graded card premiums Grading Service Price Comparison PSA Base Price: $19-149 Turnaround: 5-65 days Value Premium: Highest Special Features: Market leader recognition CGC Base Price: $15-125 Turnaround: 5-30 days Value Premium: Growing Special Features: Subgrades available TAG Base Price: $12-50 Turnaround: 3-30 days Value Premium: Emerging Special Features: AI grading, 1000-point scale How Each Service Impacts Card Values PSA Grading Value Impact PSA remains the gold standard for Pokemon card grading, with PSA 10 cards consistently achieving the highest market prices

Gleeful Demolition is a good card, but you probably don't want to blow up your own artifacts