Magic: The Gathering Comprehensive Rules Changes - Planar Chaos to Future Sight

Old rule (Planar Chaos)	New rule (Future Sight)
212.2d. [Click to view all changes.]
212.2d. Artifacts have no characteristics specific to their type. Because artifacts have no colored mana in their mana costs, they're colorless. Effects can give artifacts one or more colors, however, and colored objects can become artifacts without losing any colors they had.	212.2d. Artifacts have no characteristics specific to their type. Most artifacts have no colored mana symbols in their mana costs, and are therefore colorless. However, there is no correlation between being colorless and being an artifact: artifacts may be colored, and colorless objects may be types other than artifact.

Old rule (Planar Chaos)

New rule (Future Sight)

212.2d.

Artifacts have no characteristics specific to their type. Because artifacts have no colored mana in their mana costs, they're colorless. Effects can give artifacts one or more colors, however, and colored objects can become artifacts without losing any colors they had.

212.2d.

Artifacts have no characteristics specific to their type. Most artifacts have no colored mana symbols in their mana costs, and are therefore colorless. However, there is no correlation between being colorless and being an artifact: artifacts may be colored, and colorless objects may be types other than artifact.