yugioh xyz number cards 1: Infection Buzzking this card gains ATK equal to the combined Ranks of all Xyz Monsters currently on the field x 1000 Number 100: Numeron Dragon (RA01-EN039)

Not only does he hit for a massive 3500 damage, but he also locks down your opponent's monster effects

This year, North American TCG players in the Masters (adult) division who earned 500 CP or more were invited to Worlds

That was high enough to take a hit from most attackers of the time if at full health, and it wasnt vulnerable to Choice Band like a Pokemon-EX or GX would be

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Instead of giving -1/-1 to all creatures, it gives all of your creatures +1/+1 counters for each enchantment you cast