Pact of Negation [Modern Masters] 152 When a face-up monster you

When a face-up monster you control is targeted for an attack: You can send 1 Spell/Trap card you control to the Graveyard

if your Life Points are 1000 or less: You can detach 1 Xyz Material from this card and banish 1 monster from your Graveyard to target 1 face-up monster on the field

Set: Fifth Dawn Type: Artifact — Equipment Rarity: Uncommon Cost: {0} Equipped creature has "{T}: Add one mana of any color

the Magistus of Verre" once per turn

Pact of Negation [Modern Masters] 152 When a face-up monster youSet: Modern Masters Type: Instant Rarity: Rare Cost: {0} Counter target spell. At the beginning of your next upkeep, pay {3}{U}{U}. If you don't, you lose the game. Those who expect betrayal at every turn are seldom disappointed.