Guilded Lotus 
Artifact
Pledge (Join a two-colored guild if you haven't already this game.)
: Add three mana in any combination of your guild's colors
Legality
standardNOT LEGALpioneerNOT LEGALmodernNOT LEGALlegacyNOT LEGALvintageNOT LEGALcommanderNOT LEGAL