Healing Salve's 3 life isn't up to snuff against Lightning Bolt's (or even Giant Growth's) 3 damage, because gaining life, by itself, does not help you win the game
If a Bounty condition meets something your strategy already wants to be doing, there's little-to-no work to involved
In the Play booster era, its more than likely that youll leave a Quick Draft with five rares or more since packs have more rares and uncommons and fewer commons, plus whatever rewards you get for winning and the other cards you draft
They can generate a lot of value over the course of a game if they're not dealt with, and even when taken out swiftly, force your opponent to divert their attention away from their main goal: killing you
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