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You also wont be forced to play one or two drops that dont fit your strategy just for the sake of cheapening your late game cards
If a spell or ability an opponent controls causes you to discard Obstinate Baloth, and both Obstinate Baloth's ability and another ability (such as that of an opponent's Leyline of the Void) instruct you to put Obstinate Baloth somewhere else instead of putting it into your graveyard, you choose which one to apply
I could list quite a few combos, but those are the two main uses for this card