Design Goals: This is part of a series of 2-color Hill Giants, each with abilities that scale as the game goes on. When I posted Goblin Shot-Shooter, I discussed the fact that "drink X" abilities are generally a problem because there is no in-game mechanism to limit them. With this cycle, we decided that drinking X was fine, as long as there were parameters set on X that were in some way limited by the game state.
The goal of Porcelain Lurker was simple: turn drinking into damage. Simply saying "drink X, target opponent loses X life" would be tantamount to "You Win The Game" (and lose your dignity and at least one friend). So, we set up the card to force the caster to engineer a board state that's optimal before playing this. If you can set up a turn that causes an opponent to drink 20, then cast this, you probably deserve to win the game (but not before you have to endure 20 drinks yourself).
Inspiration: Our own sick twisted minds. You've heard the phrase "porcelain throne", right?
Got your own fun custom Booze Cube cards? Make One and reply with a link to it.
Maybe we'll feature YOURS next!
Some notes: We don't try to replicate proper Magic templating language in the rules text of cards. We do this to save space and make the cards more human-readable. Remember, you're probably real drunk when you're playing and the subtleties of the Intervening-If clause may elude you.