Favorite toolbox (all purpose) extra deck monster? : r masterduel What Are The Different Types Of Extra Deck Monsters In Yu Gi Oh? TCGplayer Yu Gi Oh! Master Duel: Best Staple Extra Deck Monsters Hollow Giants How to obtain, Decks & Usage Statistics Master Duel Meta Here are potential Synchro Tuner monsters you can special summon from your Extra Deck with Crystron Halqifibrax that are currently available in the Asian English card pool! Note: Check if the synchro guys, what do you think of generic boss monsters ,do you think they are fine, or do should a little less generic so not every deck can bring them out, or not