Soulicer Crystal [MZMU-EN042] - Maze of Muertos 1st Edition - Rare

Cannot be destroyed by card effects. You can only use each of the following effects of "Soulicer Crystal" once per turn. If your opponent controls at least 2 more monsters than you do: You can Special Summon this card from your hand. You can target 1 Effect Monster your opponent controls; negate its effects.