I’m guessing something similar to this will be implemented minus your extreme mountain pushing, flying, immortal super man type hero analogy. I believe you’ll be able to reasonably increase the power and abilities of heroes but I would guess heroes can never get quite as powerful as a Channeler who invested all of his energy in himself maybe close but not quite.  

I like your idea but I wouldn't want it to replace hero evolution. Imbueing a hero with power shouldn't instantly create a badass unit. The hero should have to grow into it, maybe as they fight (or do other relevant tasks) they learn how to access more and more of the potential given them by the channeler.

Except that in Elemental, dragons are supposed to be as strong as late-game channelers. But your point is clear, regardless - if you invest enough essence into strengthening a specifc hero, he would become powerful enough to stand toe to toe with some of the more exotic and powerful creatures in the Elemental world.

[/quote]And Immortality is not a far out idea at all.  As I said in my second part, it could simply be on a timer.  Your hero dies in battle and you just have to wait say 5 or 10 turns for him to rematerialize in your capital. In Dominions 3 Immortality is fairly common with things like Liche's and it is instantanous so long as the Immortal dies inside of friendly dominion and your caplital is still under your control.  However I do not believe that Elemental has a system like Dominion in place so a simple timer would be more than sufficent to replace that mechanic with.  But it could add the thought that your capital must still be under your control for him to come back otherwise he's dead for real.[/quote]

Personally I don't really like the idea of a unit dying and some turns later rematerializing somewhere else in the world. For one, if an immortal hero is on the losing side of a battle, chances are the enemy is going to capture him, not let him run back home. Another reason I'm not particularly fond of the idea is that it eliminates any risk associated with losing the hero. You could create a small strike force of immortal heroes and send them on extremely high-risk missions with a huge reward for success without actually taking any risk, because even if they all die you know they're just going to come right back in a few turns.

Err, okay I've played enough PnP (pencil & paper) games to make this suggestion: limit the amount of Essence the hero can be imbued with by the lower of the hero's level or the channeler's.  This means that highly augmented heroes only appear later in the game. 

Also, please don't forget we're talking about ESSENCE, the irreplaceable commodity of the Channeler.  You want Super-hero?  Guess what?  Your opponent has a stronger channeler than you, and probably is pursuing their own path to victory.  PLUS, let's call on Konman the Barbarian from another thread, and point out that if your hero goes rogue, you:

1) don't get a refund, and

2) have your own superhero raiding you.

Not sure about immortality.  Vampires are 'immortal', and they die the true death all the time.  If something like this were added, I'd have an INCREASING chance each time the hero died that the enemy found a way to do it right, and they are dead-dead, gone, finito, taking your Essence to the grave with them.

Also, if a hero gains resistance to enchantments, doesn't that include your own as well?  And if they AREN'T resistant to enchantments, I've got me a Mind Control right here up my sleeve, just waiting for you to put that big S on their chest, so I can call them Super-Traitor-Man while he rips right through your own units...