Magistus Dragon Tail

The Magistus engine gives this deck more extra deck options in case you're prevented from fusion summoning. Also, make sure you xyz and link summon before Rahu Dragon Tail and Dragon Tail Mulr lock you into special summoning only fusions for the rest of the turn.

On the Magistus Engine

Crowley, the Gifted of Magistus

Crowley, the Gifted of Magistus can special summon himself from your hand if he's added to your hand, except by drawing him, and he allows you fusion summon a Magistus monster using cards on your field or in your hand if he's normal or special summoned. His first effect is great for extending plays. His second effect allows you to fusion summon Aiwass, the Magistus Spell Spirit, a quick effect version of Snatch Steal, or Zoroa, the Magistus Victorious Verethragna, a powerful boss monster that provides monster removal and monster negates.

Zoroa, the Magistus of Flame

Zoroa, the Magistus of Flame's first effect allows you to equip a Magistus like himself with a Magistus monster in your extra deck. Equip him with Artemis, the Magistus Moon Maiden to search for a Magistus monster, Ninaruru, the Magistus Glass Goddess, which can destroy both a Magistus card in your spell and trap zone and an opponent's spell or trap, or Rilliona, the Wondrous Magistus Witch Wardrobe, who can negate the effect of 1 monster your opponent controls. Zoroa, the Magistus of Flame's second effect allows you to special summon a level 4 spellcaster from your hand or graveyard when he's equipped with a Magistus monster, but its effects are negated. This effect allows you link or xyz summon with ease.

Spoon, the Seal of Magistus

Spoon, the Seal of Magistus' main effects are his first and third effects. His first effect can add a Magistus monster from your deck to your hand, which can trigger Crowley's special summon effect. His third effect allows you to banish him from your graveyard to equip any face-up monster you control with a Magistus monster in your extra deck or graveyard. This effect is nuts, because now any monster can access the Magistus engine through Artemis or break boards with the Magistus' equip spell effects.

Proxy F Magician

Proxy F Magician's primary purpose is to fusion summon using materials on your field. If you managed to summon Spoon, Crowly, and Zoroa, then you can use any 2 of the 3 to summon Proxy F Magician. Proxy F Magician could then fuse himself with the leftover Magistus monster to make Zoroa, the Magistus Victorious Verethragna.

Edit: Now updated for the April 7th 2025 TCG banlist.