I've spent hundreds in energy since placing the swamp with no DB's. None, nada, zero. Getting the usual FB, trolls and skunks but no DB. can't even go on first adventure do to missing pieces.
Perhaps TL has adjusted the drop rate to make the quest last two weeks? I realize they say they don't tailor drop or spawn rates but I'm not dumb! Perhaps they need to loosen up just a bit to keep us coming back to the game and achieve something every now and then.