I play official, We bring Rexes and theris, and not many Rexes tbh, Rex stats are about 25k/800d (min of 80+ saddle) then Theris are about 12k 900d, The dragon is piss easy and should probably take no longer than 5 minutes, Manti is harder as barely lands, we take Shotguns in to handle the Manti mainly (300%+) Also remember too take a Yuti and something quick with flowers, so you can kite them Rock Golems away