Helm of Possession [Tempest] Frog Horror if we but seek it

if we but seek it

(A creature with intimidate can't be blocked except by artifact creatures and/or creatures that share a color with it

Whenever a Mountain is tapped for mana

Set: Shadowmoor Type: Legendary Creature — Merfolk Rogue Rarity: Rare Cost: {U/B}{U/B} At the beginning of each end step

"I'd call that a successful first test

Helm of Possession [Tempest] Frog Horror if we but seek itSet: 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.