Power: High Rogue (8.2/10) - This is a TCG-legal Link Evolution card-pool Gravekeeper control deck. It stays High Rogue because Necrovalley is still a very real anti-meta floodgate, especially when backed by Royal Tribute, Imperial Tombs, Skill Drain, Anti-Spell Fragrance, Rivalry, and Solemn traps. It is not higher because the deck is field-spell dependent and has a harder time breaking established boards than modern combo decks.
Consistency: Strong for a control deck. Gravekeeper's Commandant, Necrovalley, Terraforming, Metaverse, Necrovalley Throne, Pot of Extravagance, and Pot of Duality give many ways to see the field spell or the right Gravekeeper body. Recruiter and Headman add grind, while Spiritualist turns the engine into Supernaturalist when the hand lines up.
Ceiling: High control ceiling rather than combo ceiling. The best openings are Necrovalley plus a Gravekeeper, Imperial Tombs, Royal Tribute, Hidden Temples, Anti-Spell, Skill Drain, or Rivalry. Instant Fusion adds a small tactical ceiling through Millennium-Eyes Restrict or Thousand-Eyes Restrict, and the side deck's Super Polymerization package now has stronger targets.
Recovery: Solid. Gravekeeper's Recruiter replaces itself, Headman revives a Gravekeeper, Stele recovers two names, Necrovalley Temple can rebuild field access, and Supernaturalist searches follow-up during the End Phase while protecting the core field spell when its effect is live.
Going first/second: Best going first. Establish Necrovalley, set Imperial Tombs or other traps, and force the opponent to play through graveyard denial. Going second, the side deck brings Dark Ruler No More, Evenly Matched, Cosmic Cyclone, Harpie's Feather Duster, Ash Blossom, and Super Polymerization.
Choke points: Remove Necrovalley before Imperial Tombs or Royal Tribute matter, stop Commandant or Throne from finding the missing engine piece, negate Spiritualist before Supernaturalist lands, or force out the limited floodgates before committing graveyard-heavy plays.
Key cards: Necrovalley, Gravekeeper's Commandant, Necrovalley Throne, Gravekeeper's Spiritualist, Gravekeeper's Supernaturalist, Royal Tribute, Imperial Tombs of Necrovalley, Hidden Temples of Necrovalley, Metaverse, Skill Drain, Anti-Spell Fragrance, Rivalry of Warlords, Pot of Extravagance.
Key combos: Commandant discards itself to search Necrovalley, turning on Royal Tribute and Imperial Tombs. Throne searches Spiritualist, then Spiritualist fuses with another Gravekeeper into Supernaturalist. Supernaturalist protects Necrovalley and searches during the End Phase. Recruiter can be tributed by Descendant or used as material, then searches the next Gravekeeper. Metaverse can place Necrovalley on the opponent's turn before graveyard effects resolve. Instant Fusion can make Millennium-Eyes Restrict to protect a key setup line or Thousand-Eyes Restrict to remove a monster before linking away.