Kaiser Colosseum [DR1-EN086] Common Dinosaur and this card's ATK is

and this card's ATK is equal to the number of Zombie-Type monster returned this way x 1000

You can only use this effect of "Pyrorex the Elemental Lord" once per turn

and have this card gain ATK equal to the negated monster's ATK

Set: Duelist Pack: Kaiba Card type: Fusion Monster Rarity: Ultra Rare Attack: 4500 Defense: 3800 "Blue-Eyes White Dragon" + "Blue-Eyes White Dragon" + "Blue-Eyes White Dragon"

Kaiser Colosseum [DR1-EN086] Common Dinosaur and this card's ATK isSet: Dark Revelation Volume 1 Card type: Continuous Spell Rarity: Common Attack: 0 Defense: 0 If there is 1 or more monster(s) on the field of the controller of this card, his her opponent cannot place a monster on the field if his her number of monsters would exceed the number of monsters that are on the field of this card's controller. The cards that are already on the field before this card's activation are unaffected by this effect.