Ivory Tower
Artifact
At the beginning of your upkeep, you gain X life, where X is the number of cards in your hand minus 4.
Margaret Organ-Kean
Foreign Black Border (FBB)
• #254Rulings
If you have four or fewer cards in your hand when Ivory Tower's ability resolves, the ability has no effect.
(wotc • 2004-10-04)
Rulings
If you have four or fewer cards in your hand when Ivory Tower's ability resolves, the ability has no effect.
(wotc • 2004-10-04)