Synchro World (MP24-EN372) [25th Anniversary Tin: Dueling Mirrors]

Each time a monster is Synchro Summoned, place 2 Signal Counters on this card. If this card in its owner's control is destroyed by an opponent's card effect: You can Special Summon 1 "Crimson Dragon" from your Extra Deck. You can remove 4, 7, or 10 Signal Counters from your field; apply the appropriate effect.<br>• 4: Increase or decrease the Level of 1 face-up monster you control by 1.<br>• 7: Special Summon 1 Tuner from your GY.<br>• 10: Special Summon 1 Synchro Monster from your GY.