The only flaw keeping enTropy from being the most reliable defensive Class out there is its inability to regenerate Mana. Otherwise, it has everything a defensive Class needs and more. A nigh irresistable Stunning Skill with a short cooldown, the most powerful Healing Skill in the game, a -80% Boost debuff- those are really all it needs to shut down an opponent.
Not to mention that it is actually kind of unique in regards to defensive Classes. Most of its contemporary Classes use buffs to M/P/M Defense or debuffs to Bonus in order to divert a fair amount of damage (DragonLord, Frost Moglin Armor, Necromancer, Paladin, Pyromancer, etc.), but enTropy... sort of relies on alternating between healing, nerfing damage, Stunning, and just plain muscling through damage. And you know what? It still works. Every. Single. Time.
I still have loads of fun defeating Hard Mode Extreme Bosses with enTropy like General Varax, the Impossible Crawler, and Doctor When. For all the damage they are capable of dealing, people with enTropy can fight the battle cackling to themselves, knowing that they ultimately hold the ace... :)
@above: Indeed, the Class leans more toward defense than offensive. It feels offensively stronger than Pyromancer, though, so it has been seen as a sort of mix between offensive and defensive power among Dragon Coin Classes as of late.
@Galez: The damage output is low in comparison to Classes like SoulWeaver, Riftwalker, Kathool Adept- the Classes that are more or less intended for speed and power. But the Blood Womb -> Putrefying Being -> Rotting Touch combination is actually pretty impressive. The main reason it plays so slowly is because its animations tend to be lengthy. Putrefying Being is awesome, but time consuming. Dx