Gravekeeper's Inscription (MP24-EN064) - 25th Anniversary Tin: Dueling Mirrors 1st Edition

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