Amulet of Vigor [Mystery Booster] XY83 during your opponent's Battle Phase:

during your opponent's Battle Phase: You can target 1 Defense Position monster your opponent controls

then Special Summon in Attack Position

"Air hot with sulfur

during damage calculation (Quick Effect): You can make this card's ATK/DEF become equal to the ATK of the monster on the field with the highest ATK (your choice

This card gains the total original ATK and DEF of the monster(s) Tributed for its Tribute Summon

Amulet of Vigor [Mystery Booster] XY83 during your opponent's Battle Phase:Set: Mystery Booster Type: Artifact Rarity: Rare Cost: {1} Whenever a permanent enters the battlefield tapped and under your control, untap it. "After years of study, I've learned an important lesson: the relics we watch may be watching us back." Anowon, the Ruin Sage