Prismatic Omen

Card Name

Prismatic Omen

Mana Cost

1

Type

Enchantment

Rarity

Rare

rules Text

Lands you control are every basic land type in addition to their other types.

Flavor Text

In times of portent, the land sculpts itself in accordance with the sigils burned on the sky.

Legal Formats

Commander, Legacy, Modern, Vintage

Not Legal Formats

Alchemy, Brawl, Explorer, Historic, Pauper, Pioneer, Standard

Rulings

(5/1/2008)
Each land you control will have the land types Plains, Island, Swamp, Mountain, and Forest. They'll also have the mana ability of each basic land type (for example, Forests can tap to produce ). They'll still have their other subtypes and abilities.
(5/1/2008)
Giving a land extra basic land types doesn't change its name or whether it's legendary or basic.