We don't really know, you could be right but since the dragons survived the devastation brought about from the last civilizations to utilize doomsday type spells I think one dragon could handle any type of spell a Channeler could throw its way and dish out damage in kind. As for threatening the dragon in person even with an army at your back there is a chance (in my opinion a very high chance) that the dragon would manage to kill you. 

***EXAMPLE***

Ok let’s use basically the same example as before Player A and Player B are going at it everything is pretty even, then Player A gets the allegiance of some magical beast that decisively tilts the odds in his favor.  Now getting this magical beast cost Player A both time and resources which Player B has used to invest in advanced infrastructure in 3 of his key cities. Now Player A rallies his army with the magical beast as a spear head to attack Player B’s land. Player B meanwhile makes use of his advanced infrastructure to train either 5 “Galaxy Knights” or 1 “Doomsday Knight” his custom build units that utilized all of his available technology and resources. Now the galaxy knights require such a large amount of resources and technology that only 5 can be built at any one time and let’s say it takes 4 turns to make 1 but they can be trained at any city with enough infrastructure. The doomsday knight on the other hand utilizes the production capacity of all 3 of his key cities and only 1 can be built at any given time and the doomsday knight takes 12 turns to complete. So 8 to 12 turns later Player A has made good progress into Player B’s land if Player B doesn’t stop Player A soon he is done for so he moves his army with 5 galaxy knights or 1 doomsday knight into position to confront Player A and his magical beast. Player A still has an edge in the coming battle but Player B could win.

Now as to how to distinguish them from advanced normal units I think the best way to go about this would be to include some sort of check box in the unit/item creator that would identify doomsday knight as a “super unit” or doomsday sword as a “super weapon”. Then the player could either assign some special attributes to the specific weapon or unit that would distinguish it from just an advanced normal unit or the AI could give it increased abilities and skills to some theoretical maximum. If everything was maxed out you could only make 1 and so to make five like in my galaxy knights example the special attributes would be 1/5 of the max. Now granted I have no idea what would be acceptable in this situation for special attributes but I would guess you would have general choices like HP +, Armor +, Damage +, etc and then some that would be unique to the type of unit / weapon you were trying to make or the research and magic you had invested in.

***/EXAMPLE***

This is about as specific and detailed as I can get given we are in the dark about what all is possible in the unit / item creator system. 

I personally think that if anything could rival a channeler, it could be a dragon.  I mean dragons are always renouned super beings.   That being said, certainly since you can only get 1 channeler, I would be upset if dragons were ase powerful as channelers AND you could get more than 1.   If they were super hard to get, then that would be fine.

Well what I meant is that the effects could be similar. At least when it comes to things like armor and swords and stuff. I'm thinking that enchanted equipment for use by regular soldiers will be somewhat different than creating individual items for use by the channeler or heroes. 

Well I think we all pretty much agree that if player designed “super weapons /units” are possible to create they should have reasonable (on a per weapon / unit basis) time, research, and cost requirements, it would be crazy to make them to easy to produce. If the player has the ability to pump virtually unlimited amounts of modifiers (HP, damage, defense, etc) into a X ring for example and then equips a unit with said X ring there you go super unit created. The player should also have the option to make a weapon, armor, and magic ring set that basically offers the same benefits as the X ring. I however would want some kind of limit on the quantity of units / weapons that could be created with such high modifiers. I also wouldn’t like equipment to break as GW Swicord suggested at least not easily. If equipment could break I want the option to repair equipment for some reasonable cost. Then the only way equipment would break and have to be replaced was if the player neglected maintenance cost for too long. 

Wow, you resurrected my super soldier / weapon thread like a phoenix from the ashes. Speaking of which it would be nice to get some info on this from the devs. 

i want nazghulls like hero units that are weaker the further away from my channeler and can regenerate if killed (the further away from my channeler the longer it takes) The idea that you could have that sort of super unit sounds fun