
The Story
● Add 1 "Boss Rush" or 1 Spell/Trap that mentions it, from your Deck to your hand.
● Special Summon 1 Level 9 or lower "B.E.S." monster from your GY.
You can only use each effect of "B.E.S. Derringer Core" once per turn.
Description
● Add 1 "Boss Rush" or 1 Spell/Trap that mentions it, from your Deck to your hand.
● Special Summon 1 Level 9 or lower "B.E.S." monster from your GY.
You can only use each effect of "B.E.S. Derringer Core" once per turn.












