Hold on a second... if you need two mana to play Hermit Druid (thus the need to wait for turn 2), without haste you have to wait until turn 3 to tap OR untap him, right? Moreover, if you use up your two mana at turn 2 to play him, even if he had haste so you could tap and untap him in turn 2, you would not have that green mana to activate his untap ability, right? So, if that's right, this is a turn 3 win?
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If your entire library was gone at the end of turn 2, Ed would be right. However, Hermit Druid doesn't eliminate your whole library. It eliminates your library one card at a time from the top down, moving cards into your graveyard, ONLY until you hit a basic land. So unless the only basic land left in your library is at the very bottom, you will be able to draw a card (and thus not automatically lose) at the beginning of turn 3 (or 4). Though I suppose if the strategy is to do just that (put the whole library in the graveyard by not having a single basic land), then Ed is right.