When your opponent activates a Spell/Trap Card while you control a "Magikey" Ritual Monster or a "Magikey" monster Special Summoned from the Extra Deck: Negate the activation, and if you do, destroy that card, then you can declare 1 Attribute, and if you do that, for the rest of this turn all face-up monsters your opponent controls become that Attribute. You can only activate 1 "Magikey Unlocking" per turn.

When this card is activated: You can add 1 "Magikey" monster from your Deck to your hand. The first time each non-Token Normal Monster you control would be destroyed by battle or card effect each turn, it is not destroyed. During your Main Phase: You can add 1 "Magikey Maftea" from your Deck to your hand, then place 1 card from your hand on the bottom of the Deck. You can only use this effect of "Magikey World" once per turn. You can only activate 1 "Magikey World" per turn.

Fiend / Effect

During the Main or Battle Phase, if you took damage by battle or an opponent's card effect this turn (Quick Effect): You can send this card from your hand to the GY; Special Summon 1 "Dark Magician" or 1 "Dark Magician Girl" from your Deck or GY. If a face-up Spellcaster monster(s) you control is destroyed by battle or an opponent's card effect: You can add this card from the GY to your hand. You can only use each effect of "Magikuriboh" once per turn.

Fiend / Tuner / Effect

Cannot be used as material for a Synchro or Xyz Summon, except for the Synchro or Xyz Summon of a "Magikey" monster. If you control a "Magikey" monster: You can reveal this card in your hand; you can Normal Summon 1 "Magikey" monster during your Main Phase this turn, in addition to your Normal Summon/Set. (You can only gain this effect once per turn.) When this card is Normal Summoned: You can target 1 Level 4 or lower Normal Monster, or Level 4 or lower "Magikey" monster, in your GY; Special Summon it in Defense Position. You can only use this effect of "Maginificent Magikey Mafteal" once per turn.

Spellcaster / Pendulum / Effect

Pendulum Effect: Each time a Spell Card is activated, place 1 Spell Counter on this card when that Spell resolves. You can remove 3 Spell Counters from this card; Special Summon both this card from your Pendulum Zone and 1 face-up monster from your Extra Deck that you can place a Spell Counter on, and if you do, place 1 Spell Counter on each.

Monster Effect: You can only Special Summon "Magister(s) of Endymion" once per turn. When this card declares an attack: You can place 1 Spell Counter on it. Once per opponent's turn (Quick Effect): You can remove 3 Spell Counters from your field; Special Summon 1 monster from your Deck that you can place a Spell Counter on. If this card in the Monster Zone is destroyed: You can place this card in your Pendulum Zone, then place the same number of Spell Counters on it that it had as a monster.

Banish 4 "HERO" monsters from your GY and/or face-up field, then target 1 "HERO" monster in your GY; Special Summon it, ignoring its Summoning conditions. If you banished EARTH, WATER, FIRE, and WIND Attributes to activate this effect, the monster's original ATK becomes doubled, also negate the effects of all face-up cards your opponent currently controls. You can only activate 1 "Magistery Alchemist" per turn.

Fusion Summon 1 Fusion Monster from your Extra Deck, using monsters from your hand or field as material, including a Spellcaster monster. If Summoning a "Magistus" Fusion Monster this way, you can also use monsters in your Spell & Trap Zones that are equipped to a "Magistus" monster. You can only activate 1 "Magistus Invocation" per turn.

Target 1 "Magistus" monster you control; equip it with 1 "Magistus" monster, except a Level 4 monster, from your Extra Deck, GY, or face-up field. If you have at least 1 each "Magistus" Fusion, Synchro, Xyz, and Link Monsters in your GY, you can equip it with 1 non-"Magistus" Fusion, Synchro, Xyz, or Link Monster from your Extra Deck, instead. You can only activate "Magistus Theurgy" once per turn.

Target 1 Level 4 or lower "Magistus" monster in your GY; Special Summon it. If a "Magistus" card(s) in your Spell & Trap Zone would be destroyed by your opponent's card effect, you can banish this card from your GY instead. You can only use each effect of "Magistus Vritra" once per turn.

Wyrm / Effect

When this card is Special Summoned: You can target 1 Wyrm-Type monster in your Graveyard, except "Magma Dragon"; Special Summon it in Defense Position, but its effects are negated. You can only use this effect of "Magma Dragon" once per turn. You cannot Special Summon monsters the turn you activate this effect, except Wyrm-Type monsters.

Pyro / Effect

You can banish up to 3 FIRE monsters from your GY; this card gains 400 ATK for each, until the end of this turn. If a face-up FIRE monster(s) you control is destroyed by card effect, while this card is in your GY (except during the Damage Step): You can Special Summon this card (but banish it when it leaves the field), then draw 1 card. You can only use each effect of "Magmacho Dragon" once per turn.

Dragon / Tuner / Effect

If this card inflicts battle damage to your opponent: It gains 200 ATK.

Dragon / Effect

You can send 1 face-up Continuous Spell Card you control to the Graveyard to destroy 1 Spell or Trap Card your opponent controls.

Dragon / Effect

When a Link Monster's effect is activated that targets this face-up card on the field (Quick Effect): You can destroy this card, then send 1 monster on the field to the GY. During the End Phase, if this card is in the GY because it was destroyed on the field by battle or card effect and sent there this turn: You can Special Summon 1 "Rokket" monster from your Deck, except "Magnarokket Dragon". You can only use each effect of "Magnarokket Dragon" once per turn.

Special Summon 1 Level 2 or lower Machine-Type monster from your hand.

Target up to 3 Level 4 or lower "Magnet Warrior" monsters in your GY; add them to your hand. During either player's turn, except the turn this card was sent to the GY: You can banish this card from your GY, then target 1 of your banished Level 4 or lower "Magnet Warrior" monsters; Special Summon it.

This turn, all monsters on the field whose original Types are Machine or Rock, are unaffected by your opponent's monster effects (except their own).

If you control a "Magnet Warrior" monster whose original Level is 4 or lower: Special Summon 1 Level 4 or lower "Magnet Warrior" monster from your Deck with a different name than the cards you control, also for the rest of this turn after this card resolves, "Magnet Warrior" and "Magna Warrior" monsters you control cannot be destroyed by battle or your opponent's card effects. You can only activate 1 "Magnet Induction" per turn.

Target 1 of your Machine or Rock monsters, that is banished or is in your GY, that cannot be Normal Summoned/Set; Special Summon it.

Yami Yugi / Skill

Apply the following Skill(s):

● When a Level 4 or lower "Magnet Warrior" monster is Normal Summoned, you can add 1 Level 4 or lower "Magnet Warrior" monster with a different name from your Deck to your hand.

● You can reveal 2 Level 4 or lower "Magnet Warrior" monsters with different names from your hand, and if you do, add 1 "Valkyrion the Magna Warrior" from your Deck to your hand.

Each of these Skills can only be used once per Duel.

If you control a Level 4 or lower EARTH Rock monster: You can target 1 Level 4 or lower "Magnet Warrior" monster in your GY; Special Summon it. You can only use this effect of "Magnetic Field" once per turn. Once per turn, at the end of the Damage Step, when an EARTH Rock monster you control battled an opponent's monster, but the opponent's monster was not destroyed by the battle: You can return that opponent's monster to the hand.

Insect / Flip / Effect

FLIP: Destroy all Machine monsters on the field.

Tribute 1 "Cyber Angel" Ritual Monster from your hand or field, then target 1 LIGHT Fairy monster you control; it gains ATK/DEF equal to the Level the monster had when Tributed x 200, until the end of this turn. This turn, if it battles an opponent's monster that was Special Summoned from the Extra Deck, that opponent's monster's effects are negated during that Battle Phase only. You can only activate 1 "Magnificent Machine Angel" per turn.

Equip only to a Warrior-Type monster. Apply this effect, depending on its battle position.

● Attack Position: It gains ATK equal to its original DEF.

● Defense Position: It gains DEF equal to its original ATK.

Fiend / Fusion / Effect

1 monster Special Summoned from the Extra Deck + 1 monster in the hand

You can target 1 "Polymerization" Spell or "Fusion" Spell in your GY; place that card on the bottom of the Deck, then draw 1 card. When another card, or its effect, is activated (Quick Effect): You can banish 1 "Polymerization" Spell or "Fusion" Spell from your GY, then target 1 card on the field; destroy it. You can only use each effect of "Magnum the Reliever" once per turn.