When fighting Frost Dragons, a small blue orb will appear and start circling the dragon. It is important that you do NOT attack while the orb is out, as it will rebound any damage you would've dealt back to yourself 100%. Therefore, it is important that you have your auto-retaliate switched OFF when fighting these dragons. The orb will circle 3 times before it disappears, after which you can resume killing your dragon. However cannons can still deal damage when the orb is active, and not damaging you in the process. This makes frost dragons a tougher monster to fight, but should not heavily hinder any legitimate player trying to kill them. Jagex also created randomly appearing frost bone spawns. These spawns are unobtainable, even by telegrab. The popular thought on this is that it will deter botters programmed to pick up all frost dragon bones.