Bring over some trash wyvern eggs almost hatched and wait for 135+ have a bird with high Stam to hold it. Hatch the egg knock the wyverns health down set on neutral. Put the wyvern in the your taming pen then drop the torsion. Have people jump in to agro and jump on top of tame to have it hit or get a root shield and hold next to it until it eventually kills it.
At lvl 72 with flak armor on, a lvl 5 Troodon knocked me out with one attack at night. Last thing I saw was those glowing eyes before passing out. My Guess is that they attack vital organs. Luckily my Doedicarus was up for a game of baseball and launched that little devil out into the stands.