Mana: 100
Mana Recovery: 1 mana every 0.2 (=5/s)

Mana can be increased but only slightly 
Mana recovery may an increased with legendary items in post game. but so far no plans in the base game.

Warrior
Rightclick - Block
1 - Battlecry
10% Attack buff, -10% dmg taken for 10s
Nearby Enemies with size smaller or equal to 100% will receive a Movespd debuff of 30% for 5 seconds. (350 Range)
12sec. cd
40 mana
2 - Ground Slam
dmg: 4x Atk
15 sec. cd
50 Mana
3 - Sonic Slash
Shoots a half moon that damage everything it passes
Dmg: 8x Atk
60 Mana
Size of Projectile: 250
Range: 900
40 sec. cd

Warrior should not be able to run out of mana. Mana only stands in the way of using all 3 skills at the same time.
the Battlecry slow is primarly ment to make it easier to catch up with range units that run away, at the moment warrior probably has the hardest time dealing with mosnters that run.


Ranger
Ranger und bard shoot arrow. little higher cooldown to balance range advantage. like 0.6 maybe.

Rightclick - Retreat
Backwardsjump
leap 250 Range backwards.
cd 7 seconds.
1 Rapid fire
Shoots 4 auto hits with 0.1 sec delay between each shot. Animation locked
Normal auto hit Damage (x4)
12 sec cd. 
35 Mana
2 Charged shot
Shots an arrow that does Pierce dmg. 0.3 charge animation lock
Damage: 2.5x Atk
15 sec. cd
40 Mana
3 Multishot
Shots 6 Arrows at once in a volley
every arrow normal autohit dmg. (can be used as shotgun against large foes for 6x atk)
25 sec. cd
55 Mana



Wizard
Wizard and witch have different attacks. Both Probably around 0.85 sec cd. Skill cooldowns will be lower to balance that out.
Wizard energy bolts that are just like arrows normal projectiles

Rightclick - Teleport
Teleports to a location within 650 Range
cd 8 sec.
5 mana (probably strongest defensive spell so lets give it a slight nerf for the probably most mana hungry class next to bard)
1 Firebolt
Firebolt explodes in a bigger aoe on collision or after a set distance (1000?)
dmg: 1x autohit dmg on target that colides. 3x dmg in 250 aoe explosion
6 sec cd
30 Mana
2 Lightning bolt
Projectile. does dmg on hit and a chain lightning jumps to 2 nearby enemies that receive half the dmg.
dmg: 4x Atk main target (2x Atk nearby enemies)
6 sec cd
25 Mana
3 Meteor
after cast meteor hits a location and leaves a fire field that does some damage over time.
1.5 second cast. (no cd if cast canceled)
Max Cast Range 900, Cast on Mouse location
AoE Range: 400
Damage: 9x Atk
Fire field: same aoe range, stays 4 seconds. 1x Atk per second for enemies inside.
40 sec cd.
Mana 75