Pact of Negation [Modern Masters] 152 if your Life Points are

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

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

it's sacrificed when it enters the battlefield

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

Set: Tactical Evolution Card type: Gemini/Effect Monster Rarity: Ultimate Rare Attack: 2400 Defense: 1500 "This card is treated as a Normal Monster while face-up on the field or in the Graveyard

Pact of Negation [Modern Masters] 152 if your Life Points areSet: 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.