My Undead Horde Awakens (Schemes) [Archenemy Schemes] Mountain Plains destroy Helm of Isen's Peak:

destroy Helm of Isen's Peak: Your hero gains +1 [Intellect] until end of turn

the next morning he was dead

Set: Revised Edition Type: Artifact Rarity: Uncommon Cost: {1} You have no maximum hand size

Set: Black & White: Dark Explorers Type: Darkness Rarity: Uncommon Retreat cost: Colorless

My Undead Horde Awakens (Schemes) [Archenemy Schemes] Mountain Plains destroy Helm of Isen's Peak:Set: Archenemy Schemes Type: Ongoing Scheme Rarity: Common (An ongoing scheme remains face up until it's abandoned.) At the beginning of your end step, you may put target creature card from an opponent's graveyard onto the battlefield under your control. When a creature put onto the battlefield with this scheme dies, abandon this scheme.