Activate 1 of these effects (but you can only use each effect of "Layer 19: "Preventing the Invasion! The Pitch-Black Super Quantum!!"" once per turn);
● Target 1 Attack Position monster on the field; change it to Defense Position.
● If you control a "Super Quant" monster: Special Summon 1 "Super Quant" monster from your Deck in Defense Position, with a different original Attribute from the monsters you control.
● Set 1 "Super Quant" Trap from your Deck. It can be activated this turn.
If you control 3 or more "Super Quantum" monsters with different names: Shuffle as many cards your opponent controls as possible into the Deck, then your opponent Special Summons 1 monster from their Extra Deck, ignoring its Summoning conditions. You can banish this card and 1 "Super Quantal Fairy Alphan" from your Graveyard; activate 1 "Super Quantal Mech Ship Magnacarrier" from your Deck.
If a "Super Quant" monster you control is destroyed by battle: Special Summon 1 "Super Quantal Mech Beast" Xyz Monster from your Extra Deck, then you can Special Summon 1 "Super Quantum" monster from your hand, Deck, or GY, that is specifically listed on that Xyz Monster in its text, but negate its effects. You can only activate 1 "Super Quantal Alphancall Appeal" per turn.
Discard 1 card, then target 1 "Super Quantum" monster you control; Special Summon from your Extra Deck, 1 "Super Quantal Mech Beast" Xyz Monster with the same Attribute as that monster you control by using it as material. (This is treated as an Xyz Summon.) You can send this card from the Field Zone to the GY, then target 3 "Super Quantal Mech Beast" Xyz Monsters with different names you control and/or in your GY; Special Summon 1 "Super Quantal Mech King Great Magnus" from your Extra Deck, and if you do, attach the targeted monsters and their materials to it as material.