Power: Low Rogue (6.4/10) - This is the legal post-Isolde version of the Gearfried Red-Eyes Warrior build. It loses the explosive Isolde toolbox ceiling, but it is cleaner, fully TCG-legal, and still keeps Joey's Gearfried, Red-Eyes, equip-card, and Shield & Sword identity intact.
Consistency: Better and more honest than the old version. Red-Eyes Insight now gives the deck real access to Red-Eyes Fusion, Red-Eyes Fang with Chain, or Red-Eyes Spirit, while Black Metal Dragon, One for One, Reinforcement of the Army, Neo Space Connector, Marauding Captain, Goblindbergh, and Photon Thrasher keep the Warrior/Link material flowing.
Ceiling: Moderate. The main pressure points are Gearfried the Red-Eyes Iron Knight backed by equip cards, Red-Eyes Slash Dragon off Red-Eyes Fusion, Rank 4 Warrior lines, and Link climbing into Ferocious Flame Swordsman, Knightmare Unicorn, Borrelsword Dragon, or Borreload Dragon. It can still steal games, but it no longer pretends to be an Isolde combo deck.
Recovery: Decent. Red-Eyes Spirit and Monster Reborn bring back Red-Eyes bodies, Black Metal Dragon replaces itself with Red-Eyes cards, Red-Eyes Slash Dragon can equip Warriors from the graveyard, and Divine Sword - Phoenix Blade gives repeatable equip-card fuel for Gearfried lines.
Going first/second: Flexible, but best into midrange casual rogue games. Going first, Connector into Aqua Dolphin can check the opponent's hand while the deck sets up Gearfried or Red-Eyes follow-up. Going second, Red-Eyes Fusion into Slash Dragon, Shield & Sword math swings, Borrelsword pushes, and the side deck brings Dark Ruler No More, Evenly Matched, Twin Twisters, Cosmic Cyclone, Nibiru, and Artifact Lancea.
Choke points: Stop Red-Eyes Insight or Black Metal Dragon to cut off Red-Eyes access. Remove Gearfried before equip cards can be converted into removal or revival. Interrupt Neo Space Connector before Aqua Dolphin resolves. If Red-Eyes Fusion is used, remove Red-Eyes Slash Dragon before it can start protecting itself with equipped Warriors.
Key cards: Gearfried the Red-Eyes Iron Knight, Gearfried the Iron Knight, Red-Eyes Black Dragon, Black Metal Dragon, Red-Eyes Insight, Red-Eyes Fusion, Red-Eyes Slash Dragon, Red-Eyes Fang with Chain, Red-Eyes Spirit, Shield & Sword, Divine Sword - Phoenix Blade, Living Fossil, Moon Mirror Shield, Neo Space Connector, Neo-Spacian Aqua Dolphin.
Key combos: Red-Eyes Insight sends a Red-Eyes card to search Red-Eyes Fusion, Fang with Chain, or Spirit. Red-Eyes Fusion sends Red-Eyes Black Dragon plus a Warrior to make Red-Eyes Slash Dragon. Slash Dragon equips a Warrior from the graveyard after battling and can send an equipped card to negate targeting. Gearfried the Red-Eyes Iron Knight can send an Equip Card to revive a Level 7 or lower Red-Eyes monster, and Divine Sword - Phoenix Blade can come back by banishing Warriors. Neo Space Connector summons Aqua Dolphin, giving two Warrior bodies and a chance to strip a hand trap before committing.