The following special rules for MECCG are in place at Lure of Middle-earth:
1. The nine German promo cards are legal to play.
2. The Balrog Limited rule is in use. (More details here.)
3. The official Lure of Middle-earth promo card is legal in all tournaments (except for Dream Card events) with the following text correction:
„Tap Lure of MECCG to give +X to a corruption check (to a maximum of 4). […] If you have participated in at least 10 Lure of MECCG events, you may tap one of your characters to untap Lure of MECCG (once per round).“
All other regular tournament rules from Council of Elrond are followed. (Find the full rules here.)