Darkrai

Darkrai is a Dark-type legendary from Generation IV, the Sleep Pokémon built around nightmare and darkness mechanics. It's got that anti-hero appeal—genuinely feared in-game and lore, but also weirdly compelling. Introduced during the Diamond/Pearl era when Game Freak leaned hard into moody, atmospheric legendaries. Darkrai sits in that sweet spot between mainstream recognition and niche fascination. The card market treats Darkrai as a consistent secondary-tier chase. It pulls decent volume across multiple eras and printings—never the headliner, but reliably sought after by players and collectors who want something darker and less obvious than the marquee legendaries. Low supply on certain printings can spike local interest, but Darkrai doesn't command the scarcity premium of true unicorn cards. Solid, stable demand without the hype volatility.