This beast is already insanely fast but if you have the new skill tree you can get the speedy harvester bonus and whenever you harvest bushes you will get a stacking speed boost get speedy harvester up to max and the bison might be the fastest animal on land and maybe even the fastest means of transportation in ark to date. On top of all of that the bison is kinda of a beast with pretty good combat ability and a massive weight stat combine all this you have a charging, metal running beast.