Nightmare's Steelcage [BP02-EN148] Common Legendary Collection 0 Promos Card type: Digimon

0 Promos Card type: Digimon Rarity: Uncommon Digi type: Insectoid Play Cost: 7 Form: Ultimate Attribute: Vaccine Digivolve Cost: 2 Digivolve Cost Level: 4 [When Attacking] If your opponent has 2 or more suspended Digimon， gain 1 memory

We're not sure how they got here

if a Fusion Monster is Fusion Summoned: You can target 1 "Metalfoes" monster in your Graveyard with a lower Level than that Fusion Monster

Set: Legendary Collection 2 Card type: Normal Spell Rarity: Common Attack: 0 Defense: 0 Add 1 "Elemental HERO" monster from your Deck to your hand

When this card is sent from the field to the Graveyard: You can send 3 "Fire Formation" Spell/Trap Cards you control to the Graveyard

Nightmare's Steelcage [BP02-EN148] Common Legendary Collection 0 Promos Card type: DigimonSet: Battle Pack 2: War of the Giants Card type: Normal Spell Rarity: Common This card remains on the field for 2 of your opponent's turns. While this card is face up on the field, no monsters can attack.