Damage can't be prevented this turn. If a source you control would deal damage this turn to an opponent or a permanent an opponent controls, it deals
tripleTripling a creature’s power and/or toughness creates a continuous effect. This effect modifies that creature’s power and/or toughness but doesn’t set those characteristics to a specific value. See rule 613.4c.
To triple a creature’s power, that creature gets +X/+0, where X is twice that creature’s power as the spell or ability that triples its power resolves. Similarly, an effect that triples a creature’s toughness gives it +0/+X, where X is twice that creature’s toughness. Tripling a creature’s power and toughness gives it +X/+Y, where X is twice its power and Y is twice its toughness.
If a creature’s power is less than 0 when it’s tripled, tripling that creature’s power instead means that the creature gets -X/-0, where X is twice the difference between 0 and its power. Similarly, if its toughness is less than 0 when tripled, it gets -0/-X. If one characteristic’s value is negative but the other isn’t when both are tripled, it gets -X/+Y or +X/-Y, as appropriate. (CR 701.11) that damage instead.
FlashbackFlashback appears on some instants and sorceries. It represents two static abilities: one that functions while the card is in a player’s graveyard and another that functions while the card is on the stack. “Flashback [cost]” means “You may cast this card from your graveyard if the resulting spell is an instant or sorcery spell by paying [cost] rather than paying its mana cost” and “If the flashback cost was paid, exile this card instead of putting it anywhere else any time it would leave the stack.” Casting a spell using its flashback ability follows the rules for paying alternative costs in rules 601.2b and 601.2f–h. (CR 702.34) (You may
castTo cast a spell is to take it from the zone it’s in (usually the hand), put it on the stack, and pay its costs, so that it will eventually resolve and have its effect. A player may cast a spell if they have priority. See rule 601, “Casting Spells.”
To cast a card is to cast it as a spell. (CR 701.5) this card from your graveyard for its
flashbackFlashback appears on some instants and sorceries. It represents two static abilities: one that functions while the card is in a player’s graveyard and another that functions while the card is on the stack. “Flashback [cost]” means “You may cast this card from your graveyard if the resulting spell is an instant or sorcery spell by paying [cost] rather than paying its mana cost” and “If the flashback cost was paid, exile this card instead of putting it anywhere else any time it would leave the stack.” Casting a spell using its flashback ability follows the rules for paying alternative costs in rules 601.2b and 601.2f–h. (CR 702.34) cost. Then
exileTo exile an object, move it to the exile zone from wherever it is. See rule 406, “Exile.” (CR 701.13) it.)