REDU format ruling
Imperial Iron Wall

Nearest-era rulings (Tengu, Sept 2011) — no REDU-specific archive exists.
Card effect (current official text)Neither player can banish cards.
Rulings
(1) Cards cannot be removed from play.
- The (1) Continuous-like Effect does not activate.
- Cards CANNOT activate if their cost / effect would remove a card(s) from play
- Examples: Allure of Darkness, Nobleman of Crossout, Book of Life, Bottomless Trap Hole).
- If Imperial Iron Wall is chained, effects earlier in the Chain resolve as much as possible.
- Example: Player A activated Allure of Darkness and Imperial Iron Wall was chained. Player A only needs to reveal a DARK monster in hand. If they cannot, they discard their entire hand.
- Example: Imperial Iron Wall was chained to Nobleman of Crossout, the targeted monster is destroyed but it is not removed from play. No cards in the Deck are removed from play.
- Imperial Iron Wall trumps the effect of Macro Cosmos since it prevents an action.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the REDU forum — sourced change requests get reviewed.