what units (level 21) mage

[aj2000]

A single tank stack with a bunch of support / range / summoner seems to work best for me as mage. As stated the possibilities are endless. You can pick a main tank from below (or whatever works for you) and the rest from the support / backup / range list and won't go wrong. If you have certain items that work with some of them that would be even better (red dragon amulet I hear is great, and my high druid staff means I use royal griffin as my main tank for 50% attack bonus).

Main Tank:
-Royal griffin (decent tank, fast flyer, summons good stack of tank! great!)
-Executioner (great tank, huge killing potential against melee heavy opponent, though bad morale mix with humans ...etc)
-Demon (Great tank, same as exec, with a bonus demon summon support at the expense of less killing power)
-etc...

Support / backup tank:
-Paladin (backup tank, too slow otherwise but rock hard resilient, with 2nd wind as support bonus and an excellent AoE ress.)
-Green dragon (backup tank, raider, support with mana drain, great for mage)
-Royal snake (Pure raider, great poison ability, worst case backup tank)
-etc...

Range / backup tank:
-Red dragon (great range breath ability! and decent fast raider tank.)
...etc

Support / Range:
-Demonologist (good range, summons and a drain life ress charge, great!)
-Druid (AoE great rage booster, summons and control animal for sacrifice, awesome unit vs animal to build up free army easily. highly recommended vs army with animals in it. high priority target for enemy AI)
-Archmage (okay range, useful telekinesis support for trap tripping, godly magic shield for super tanking! highly recommended to support main tank. Also shocks units)
-Inquisitor (Weak overall, good in singles filling in empty army slot just to boost rage, blessing tank and early ress)
-Evil beholder (good range combined with disabling power, hynotizes)
-...etc

Support:
-Dryad (summoner, disabler, pinch raider, even better with dryad boosting artifact like chastity ring)