Creature — Kithkin Knight 1/3, 1{W/U}{W/U}{W/U} (4)
Rare
Flash
Other white creatures you control get +1/+1.
Other blue creatures you control get +1/+1.
The thoughtweft is his informant, and he its devoted guardian.
Illus. Adam Rex

5/1/2008: The abilities are separate and cumulative. If another creature you control is both of the listed colors, it will get a total of +2/+2.
Legal in Vintage (Type 1)
Legal in Legacy (Type 1.5)
Legal in Classic (MTGO)
Legal in Commander
Legal in Modern