Rillaboom SWSH277

Rillaboom SWSH277 is an English Sword and Shield Promo card, identified by the SWSH prefix used across the black star promotional series from that era. Promo cards like this are distributed outside the standard expansion sets, often through special products or events, which gives them a distinct place in a collection.

Rillaboom is the fully evolved form of Grookey, one of the Galar region starters, and remains a recognisable face for fans of that generation. The promotional printing carries its own SWSH numbering rather than the fractional set number found on main set cards, a detail that helps collectors identify promos at a glance.

For collectors who enjoy completing the Sword and Shield promo run or building out the Grookey evolutionary line, this Rillaboom promo is a worthwhile pickup. It complements the standard set printings of the same Pokemon.

Condition and authenticity

This card meets Monster Mart's Mint condition standard:

• Corners: No visible fraying or whitening
• Edges: Smooth and clean, no silvering
• Surface: Free of scratches, dents, creases or smudges
• Centering: Within 60/40 front limit

Every card is authenticated and thoroughly inspected by Monster Mart, and ships tracked from Brisbane in protective sleeves and rigid holders.