What do the game devs consider the best units?

[milo]

Emerald dragons are good for a couple of reasons, their drag attack works really well with no retaliation and can be combined with a spell like trap (think in my mage game trap was doing 6000-7000 damage). Their mana drain ability allows you to recoup huge amounts of mana against large stacks. Even if you are not using the cheap and cowardly invisiblity tactic with emerald dragons, they have high initiative and speed, in most battles they can wait for enemies to move, then fly amidst them and use mana drain or drag attack then fly to safety at beginning of next round. A single stack of emerald dragons can win virtually every battle with no losses. Glot's shield armageddon combo is excellent with this troop.

I hope in the upcoming expansion there is some rebalancing of some of the troops, ideally each racially based army should be viable. Presently very large stacks of low level troops are more viable than higher level stacks.