Stellarknight Constellar Diamond (Platinum Secret Rare)

Stellarknight Constellar Diamond (Platinum Secret Rare) was released in April 2025. Launch-week prices are left out here: before supply arrives they are mostly guesses. In the last year the price changed −12.5% and ranged from $0.19 to $0.38, and it now trades in the middle of that range. The cheapest listing right now is $0.10, and the 30-day average market price is $0.27.

3+ Level 5 LIGHT monsters
During your Main Phase 2, you can also Xyz Summon this card by using a "tellarknight" Xyz Monster you control as material, except "Stellarknight Constellar Diamond". (Transfer its materials to this card.) While this card has material, neither player can send cards from the Deck to the GY, and any card that returns from the GY to the hand is banished instead. When an opponent's DARK monster's effect is activated (Quick Effect): You can detach 1 material from this card; negate that activation, and if you do, destroy it.