Time Wizard [SDJ-015] Common BT5-015 during damage calculation (Quick Effect):

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

You can only use this effect of "Celestial Double Star Shaman" once per turn

if "Vijam the Cubic Seed" is Special Summoned by the effect of a "Cubic" monster: Send this card to the Graveyard

banish them

Time Wizard [SDJ-015] Common BT5-015 during damage calculation (Quick Effect):Set: Starter Deck: Joey Card type: Effect Monster Rarity: Common Attack: 500 Defense: 400 Toss a coin and call Heads or Tails. If you call it right, your opponent's monsters on the field are destroyed. If you call it wrong, your own monsters on the field are destroyed and you lose Life Points equal to half the total ATK of the destroyed monsters. This card can be used only during your own turn, once per turn.