Cosmic Quasar Dragon [DUNE-EN037] Quarter Century Secret Rare Advent Calendar 2019 it gains ATK equal to

it gains ATK equal to half the ATK of the attack target

Set: Battles of Legend: Hero's Revenge Card type: Quick Play Spell Rarity: Secret Rare If you control no monsters in your Main Monster Zones: Target 1 face-up Effect Monster on the field

that card gains [Double Attack] during this turn

Set: Legend of Blue Eyes White Dragon (25th Anniversary Edition) Card type: Normal Monster Rarity: Ultra Rare Attack: 200 Defense: 300 A forbidden left leg sealed by magic

or leaves the field because of an opponent's card effect

Cosmic Quasar Dragon [DUNE-EN037] Quarter Century Secret Rare Advent Calendar 2019 it gains ATK equal toSet: Duelist Nexus Card type: Synchro Effect Monster Rarity: Quarter Century Secret Rare Attack: 4000 Defense: 4000 1 Tuner Synchro Monster + 2+ non Tuner Synchro Monsters Must first be Synchro Summoned with the above materials. Once per turn: You can target face up cards on the field, up to the number of monsters used as Synchro Material for this card +1; negate their effects. This effect's activation and effect cannot be negated. (Quick Effect): You