Timekeeper
You should add an effect to Timewarp,also maybe add damage upon arriving to target point.
Regent Lord
Death coil can be casted on enemies.
Zeus
Add the shocking effect to each hit target so it really looks like the they've been struck by lightning.
Reaper
Smokescreen should be based on an AoE spell so you can see which units it will affect.
Shadowdance should have less delay per strike,currently doesn't seem really good; you can increase the speed and number of hits but decrease damage per hit. Also maybe an effect on each strike on target unit.
Sentinal
In my opinion,Eclipse should be based on Moonstone item ability so the effect reverts after some time making it artificial night.
Ranger
Arrow storm could work like - ranger players Stand Victory animation (shoots arrows in the sky) and after a short delay,the arrows fall onto target area.
Also the normal projectile could use an arc.
In ultimate spell,Raven is mentioned while the hero name is Jasmine
Warrior
Typo in ultimate tooltip - "Agaisnt" instead of "Against"
Shaman
Effect from Juju spell seems to follow target's facing and animations which makes it look bad when the unit changes facing or attacks.
Leoric
Typo in ultimate - "Leorics" instead of "Leoric's"
Also i'm not sure,but it seems that Cleave spell deals additional damage to attacked target too.
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Except that,heroes like Zeus,Ranger and Shaman need sound and effect when their normal projectile hits the target.
Oh and...in several games i've played,i noticed my name on multiboard wasn't always correct. Sometimes instead of WorldEdit it was just World,or one game my name changed to color code prefix