Too bad Damage Indicators is borked badly right now. The health bar always stays full right now, whether mobs are damaged or not. (At least this happens for me.)
There are few things you should never give to Chaeris. This includes: His own server, with a special tnt explosion revamping based on Nvidia Physx (handled by CPU). This is the result, no server should experience this high level of funny griefing:
I'm surprised those trees in the first pic (Top right) survived. It looks as if the ground beneath them didn't make it.
I blew up those just after. With essentials (and /nuke) and because this replaces the mechanic of TnT causing the /nuke to explode really (I installed a backup plugin, because sometimes I blew up building of my friends with the /nuke command ) it is anyway really easy to blow up a whole biome. You can also fire up a ball of Tnt made with the worldedit, best effects is get when the ball is underground. On the first picture, you can see a huge hole. This was a TnT sphere with a radius of... 10...