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Royal Blood
Radio Knife is a R card from OP-10 Royal Blood. Only about 1 in 2 booster boxes has it: it's one of 26 cards sharing the “Rare” pull. It sells for about $0.21 on TCGplayer. In Europe it costs 41% less than in the US.
Rare
Market price (Foil)
$0.21
TCGplayer, as of October 21, 2026
On Cardmarket (Europe): €0.11
| Printing | Market | Low | Mid |
|---|---|---|---|
| Foil | $0.21 | $0.01 | $0.25 |
[Main] Rest up to 1 of your opponent's Characters with a cost of 6 or less. Then, K.O. up to 1 of your opponent's rested Characters with a cost of 5 or less. [Trigger] Rest up to 1 of your opponent's Characters with a cost of 4 or less.