At the beginning of your upkeep, if you control a green or white permanent, target player loses 1 life. If you control a green permanent and a white permanent, that player loses 3 life instead.
Legalities
Legal
Duel
Predh
Legacy
Vintage
Commander
Premodern
Oathbreaker
Not Legal
Brawl
Penny
Future
Modern
Pauper
Alchemy
Pioneer
Explorer
Historic
Standard
Timeless
Gladiator
Oldschool
Standardbrawl
Paupercommander
Rulings
2004-10-04
It can make a player lose 0, 1, or 3 life, but never 4.