Common Cause
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This printing
SetMMQ
Collector #13
Released1999-10-04
Rarityrare
ArtistJohn Matson
LanguageEN
Layoutnormal
ScryfallOpen ↗

Common Cause

RareColour IDMV 3
Enchantment
Nonartifact creatures get +2/+2 as long as they all share a color.
Card capabilities
Enchantment
Derived deterministically from card types, Oracle text and keywords. Not a strategic evaluation.
Format legality
Other printings
This is the only English printing.
Rulings (2)
wotc4 Oct 2004
The ability gives +2/+2 to all creatures which are not artifact creatures, as long as every one of those creatures is of the same color. They can have additional colors beyond the one they share, but they all have to share one color. If any creature is not of the shared color, the bonus is lost.
wotc4 Oct 2004
It really does mean “all creatures”, including your opponent’s.