If a face-up "Centur-Ion" card(s) you control leaves the field by an opponent's card effect, while this card is in your GY (except during the Damage Step): You can Special Summon this card
While I understand the ambition here, I think its misguided, and you should just scrap it

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Its evolutionary line is known for its strong offensive capabilities, which is a significant draw for players who favor aggressive battle strategies
Whether tackling the puzzles in challenge dens or slogging your way to the next exp level by going up against enemies, it's a game that keeps you on your toes and provides you with a great sense of achievement when you finally complete tough sections
Special Summon Monsters[edit] Playing style[edit] "Bystial" is a Dragon theme centered on banishing resources and general disruption of the opponent's plays