The breath weapons in your life not beefy enough for ya? This mod has ZERO scripts all that is effected is Dragon Breath weapon and steam centurion ( fire and Ice)  This mod makes Breath Weapon attacks from Dragon and Centurions dmg last for 10 seconds.. ( you Burn!) 

Here are some of my other mods (also script free)   DRAGONS INJECTOR    MAG   WEREWOLF INJECTOR
I currently have uninstalled all dragon mods but the Dragon Injector. Deadly dragons had no issues with my dragon tweaks. I do not think that this would be compatible with DCO.