Gravekeeper's Inscription (MP24-EN064) [25th Anniversary Tin: Dueling Mirrors]

At the start of your Main Phase 1: Apply 1 of the following effects until the end of your opponent's turn.<br>• Neither player can activate card effects in the GY.<br>• Neither player can banish cards from the GY.<br>• Neither player can Special Summon monsters from the GYs.