Summon Shock (BLZD-EN078) - Blazing Dominion 1st Edition

Each time a monster(s) is Normal or Special Summoned, place 1 Summon Counter on this card (max. 4). If the 4th Summon Counter is placed on this card: Remove all Summon Counters from this card, and if you do, send all monsters on the field to the GY.