It's "your".
There is a very simple trick for this (which really isn't a trick at all).
Do not shorten the words.
Then you get "You are mighty spirit was", which obviously isn't correct - get it right next time.
And uhh, seriously... if you're going to use campain-heroes, do it correctly.
I'm glad you left Cenarius out of it (overpowered), but Archimonde? He's got divine armor, chaos attack, spell immunity and freaking epic abilities.
Long cooldown for those spells? Yeah, but at level 1 he can summon either 2 infernals (1 minute I believe) or 3 doomguards for uhh... all eternity (forever).
By the time I came to the last boss, I had an army of 6 infernals, infinite doomguards and even more fel stalkers.
The last boss couldn't even
try to attack me, and if he could he couldn't do any damage either way.
Other overpowered heroes include Gul'dan, Arthas and all other heroes with the spell "Divine shield".
Yes. that spell is extremely overpowered, let me explain why.
All heroes with that spell also have devotion aura and attribute bonus.
First you level divine shield to level 3 (with devotion aura being level 2 when you're level 5).
At level 6, pick devotion aura and then just keep improving attribute bonus (holy light and resurrection are the worst spells ever in this game).
Good, now you have 45 seconds invulnerability and those 15 seconds you AREN'T invulnerable you can't even die (high armor, high regen).
Ohh, and if you do need HP quickly, you can convert 50 mana to 100HP because... you know, divine shield costs 25 mana (and while divine shield is active you don't need healing), so by the time you DO need HP, your mana pool is full - and because those attribute bonuses, your intelligence (thus mana and mana regen) is also quite high.
And Kil'jaeden is underpowered, he doesn't have any abilities and his overall stats kinda suck.
Next time: make 5 heroes of your own and actually try making them any good instead of copying all of Blizzard's heroes.
Those heroes don't fit in this type of game and make you seem really lazy.
Also, the more heroes you have, the worse the game will be (unless you're an advanced mapper).
More heroes = more problems balancing, more problems making them original, more problems making them good, more problems making them differ from eachother etc.
That's why I advice you to create as few heroes as possible while still being able to choose carefully (3 main classes should always be available: warrior, archer, mage - how you name them is your choice).
The attack/armor-icons also screamed "look, I can change icons!".
Which isn't good (icons should fit the game, they aren't there to make you look better).