Sceptre of Eternal Glory [Warhammer 40,000] Basic Land {T}: Add one mana of

{T}: Add one mana of any of the exiled card's colors

but my host would casually push it down before I could make out what it was

That land is a Swamp for as long as it has a mire counter on it

that ability triggers an additional time

Spend this mana only to cast a planeswalker spell

Sceptre of Eternal Glory [Warhammer 40,000] Basic Land {T}: Add one mana ofSet: Warhammer 40,000 Type: Legendary Artifact Rarity: Rare Cost: {4} {T}: Add one mana of any color. {T}: Add three mana of any one color. Activate only if you control three or more lands with the same name. It burns with the very fire that doomed Szarekh's species, and channels it to devastate his foes.