Metamorphortress

When an opponent's monster attacks: Special Summon this card as a monster in Defense Position (Rock-Type/EARTH/Level 4/ATK 1000/DEF1000). When this card is Special Summoned, you can have 1 monster you control become an Equip Card to this card. This card gains ATK and DEF equal to that monster’s ATK. If this card attacks, change it to Defense Position at the end of the Damage Step. This card is also treated as a Trap Card.[1][2]

4K Media lore?: Activate this card by targeting 1 Level 4 or higher monster you control; Special Summon this card as an Effect Monster(Rock-Type/EARTH/Level 4/ATK 1000/DEF 1000), then equip that face-up monster to this card. (This card is also still a Trap Card.) If Summoned this way, this card gains ATK and DEF equal to the ATK of the monster equipped to it by this effect, also if it attacks, change it to Defense Position at the end of the Damage Step.