Bosium Strip [Weatherlight] Darkness[+10] Set: Wizards of the Coast:

Set: Wizards of the Coast: Black Star Promos Type: Colorless Rarity: Black Star Promo Retreat cost: Colorless

"It was probably a lousy spell in the first place

{2}{G}{G}{G}: Elf creatures you control get +3/+3 and gain trample until end of turn

Set: Black & White: Plasma Blast Type: Metal Rarity: Ultra Rare Retreat cost: Colorless

and you just made the wrong one

Bosium Strip [Weatherlight] Darkness[+10] Set: Wizards of the Coast:Set: Weatherlight Type: Artifact Rarity: Rare Cost: {3} {3}, {T}: Until end of turn, you may cast instant and sorcery spells from the top of your graveyard. If a spell cast this way would be put into a graveyard, exile it instead.