Obviously the default is that everyone votes for themselves to draw a card, but if just one person puts their vote elsewhere, they might drop a game-winning permanent into play for free
Sliver decks have never had the best card draw within their creature base, opting instead for running the best of whats available in the five colors
You can cast this spell with flashback for relatively cheap depending on your commanders mana value, though, so its semi-useful in a deck that relies on exchanges like Zedruu the Greathearted
Varchild, Betrayer of Kjeldor could be fun in some sort of group slug deck where you give your opponent tokens but in a harmful manner (maybe with something like Trespasser's Curse on the battlefield), although she might be better in the 99, since mono-red is pretty limiting
+1: Exile the top card of your library
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