Mewtwo LV.X (DP28) [Diamond & Pearl: Black Star Promos] SM69 The damage calculation is applied

The damage calculation is applied normally

When a monster(s) you control is targeted for an attack or by an opponent's card effect (except during the Damage Step): You can destroy all cards your opponent controls

if you activate a Spell/Trap Card or effect while this card is in your Graveyard (except during the Damage Step): You can Special Summon this card

the unused Monster Zones this card points to cannot be used for the rest of this turn

Mewtwo LV.X (DP28) [Diamond & Pearl: Black Star Promos] SM69 The damage calculation is appliedSet: Diamond & Pearl: Black Star Promos Type: Psychic Rarity: Black Star Promo Retreat cost: Colorless,Colorless