Helm of Possession [Tempest] Construct Set: Rivals of Ixalan Type:

Set: Rivals of Ixalan Type: Legendary Creature — Elder Dinosaur Rarity: Rare Cost: {5}{U}{U} This spell can't be countered

that player can't cast spells or activate abilities and plays with their hand revealed

Set: Betrayers of Kamigawa Type: Legendary Creature — Spirit Rarity: Rare Cost: {6}{G}{G} Snake offering (You may cast this card any time you could cast an instant by sacrificing a Snake and paying the difference in mana costs between this and the sacrificed Snake

The Temur have no patience for subtlety

Helm of Possession [Tempest] Construct Set: Rivals of Ixalan Type:Set: Tempest Type: Artifact Rarity: Rare Cost: {4} You may choose not to untap Helm of Possession during your untap step. {2}, {T}, Sacrifice a creature: Gain control of target creature for as long as you control Helm of Possession and Helm of Possession remains tapped.