Legality depends on the tournament format -- Rousing Refrain can be legal in some formats and banned or restricted in others
This card, Supervise, would be beneficial in a Gemini monster-focused deck, enhancing their effects and providing a way to Special Summon a Normal Monster from the Graveyard
Since your artifacts will untap as well, you can filter a ton of extra mana into cards like The Millennium Calendar for a massive finish
That scale helps explain why sold comps became a major pricing reference
The Crystals incorporate the Medallion text, and offer way more passive and late-game utility, so theyll likely be very strong for the decks that want them, but theyre less important and more replaceable than 2-mana rocks
As is usually the case, The Pokemon Company revealed the next Pokemon Trading Card Game set arriving later this year ahead of overseas territories