https://yugipedia.com/wiki/Different_Dimension_Hangar
>When you activate this card, remove from play 3 Level 4 or lower Union Monsters from your Deck. When a monster that satisfies the Union equipment conditions written in the card text of a Union Monster(s) removed this way is Normal or Special Summoned to your side of the field, you can Special Summon that Union Monster(s). Union Monsters Special Summoned by this effect cannot attack or be Tributed.
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