There is no clear human type hero in the tavern and there is also no hero, that clearly boost a units stats, so here we go.
My hero looks most likely like a heavy armored version of the paladin, well, with some nuances of a druide, or lets say, “nature” bound style.
His playstyle is probably micro’intensive.
Natures Wrath (30 manacost, 3 seconds cooldown, autocast function)
Heals a unit overtime and increases its attackspeed:
5 / 6 / 7 seconds
75 / 150 / 225 HP
10% / 15% / 20%
Iron Will (30 manacost, 3 seconds cooldown, autocast function)
Increases a units movement speed and armor for a short amount of time:
5 / 6 / 7 seconds
10% / 15% / 20%
2 / 3 / 4 Armor
Insight (Passive)
Every autoattack replenish mana: 5 / 10 / 15
(I was thinking about a HP regen effect aswell, for like 2/3/4 but I’ll keep it clear for this time…)
Void (couldnt think of a better name for now) (costs 100 mana, lasts 15 seconds, 60 seconds cooldown)
Steals or reverses all buffs and debuffs around an area around the hero.
For example: Roar and inner fire is applied randomly to your own army,
slow and curse, debuffs the enemy, speedscroll gets stolen, and so on.
It is probably better to make this a lasting effect, so every new spell, that is casted by the enemy, is stolen aswell.
I was also thinking about, to give him an unsual high amount of HP, low mana pool, and a mediocre amount of armor. This would give the rings of protection
more value (If you pick him as a second hero for example), helps to get in position for his passive, and this would make him little bit more unique.