def drawCard: GameState => Game = gs => {
      val player = gs(pi)

      player.deck match {
        case next +: rest =>
          val newGS = gs.updatePlayer(player.copy(
            hand = player.hand :+ next,
            deck = rest))
          EffectDone(newGS, CardDrawn(pi, next))
        case Nil =>
          //Do nothing if both deck and discard are empty
          if (player.discard.isEmpty) EffectDone(gs)
          //Reshuffle discard into deck, then draw
          else reshufflePlayerDeck(pi)(gs).flatMap(drawCard)
      }
    }