A creature will take 2d6 destruction on the unsuccessful preserve, and half just as much destruction on a successful one. The destruction boost to 3d6 at 6th level, 4d6 at 11th, and 5d6 at 16th level. following using https://thebookmarkfree.com/story17601111/5-easy-facts-about-5e-centaur-race-described