Everybody wants a dragon with high hit points. Fine. But it will last longer if it has high resists. In the interests of simplicity, use just the physical resist. The damage received is (100 - phys resist) %. Put those 2 together and the time for a baddy to kill a greater dragon is: Rating = hit points / ( 1 - physical resist ) For example, with 765 hits and 82 physical resist the rating comes out: Rating = 736 / (1 - .82) = 4088. Anything over 3000 rating is a keeper in my opinion, 4000 is great enough to pay money for at the bank, and 5000 is worth bragging about in this forum.