Pact of Negation [Masters 25] Legendary Artifact Creature Colossus of Sardia doesn't untap

Colossus of Sardia doesn't untap during your untap step

Sacrifice a Goblin: Destroy target artifact

Set: Commander 2015 Type: Creature — Vedalken Wizard Rarity: Rare Cost: {1}{U}{U} {U}

An opponent gains control of Rainbow Vale at the beginning of the next end step

If that card's mana value is less than or equal to the sacrificed artifact's mana value

Pact of Negation [Masters 25] Legendary Artifact Creature Colossus of Sardia doesn't untapSet: Masters 25 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.