Blood Mefist [YCSW-EN004] Super Rare Astral Pack 1 attach those targets to this

attach those targets to this card as Xyz Materials

this card gains 300 ATK

Set: Starstrike Blast Card type: Synchro/Effect Monster Rarity: Ultra Rare Attack: 2600 Defense: 1900 1 Tuner + 1 or more non-Tuner Machine-Type monsters When this card is Synchro Summoned

rescue his Grandpa from Pegasus

you can Special Summon 2 "Hydrogeddon"s and 1 "Oxygeddon" from your Graveyard

Blood Mefist [YCSW-EN004] Super Rare Astral Pack 1 attach those targets to thisSet: Yu Gi Oh! Championship Series Prize Cards Card type: Synchro Effect Monster Rarity: Super Rare Attack: 2800 Defense: 1300 1 Tuner + 1 or more non Tuner monsters Once per turn, during your opponent's Standby Phase: You can inflict 300 damage to your opponent for each card your opponent controls. Each time your opponent Sets a Spell or Trap Card(s): Inflict 300 damage to your opponent.