Helm of Possession Tweet English, Near Mint, limit 10 $0.87 / $1.31 credit Buy This Product Details Card Text: You may choose not to untap Helm of Possession during your untap step. 2, T, Sacrifice a creature You control target creature as long as you control Helm of Possession and Helm of Possession remains tapped. Card Type: Artifact Color: Artifact Cost: 4 Finish: Regular Name: Helm of Possession Rarity: R Set Name: Tempest