1) Ice Blast. It's very and very powerful skill with low cd, manacost and high cast range. Healing is one of basical features in LoD. Sometimes only Ice Blast winning near-to-lose pro games. Now it's banned in those games.
I suggest one of:
— increase cooldown to 80/70/60 sec
OR
— remove aghanim's specter completely
And maybe increase manacost to 250.
2) Remove ultimate's refreshing from Supernova. As in normal DotA.
Why? Because one aghanim makes near to non-countered combos with global ultis.
3) Add Ball Lightning constant cast time 0.2-0.3. Don't need to comment.
4) Remove Rearm or totally rework as it was suggested long time ago.
5) Remove static field enemy passive or reduce damage by 50% and made it can't spell lifesteal (!)
6) Add 2-3 sec cooldown on aftershock instead of draining 5% of current mana.
7) Made witchcraft 10% chanse on ultis, as it said in descrition (!!!) or totally remade it as spell lifesteal.
8) Rescale Pulse Nova damage/manacost. Now it's better on 1 level that on 3. I suggest to reduce DPS to 60/100/140 without aghanim and 110/155/200 with aghanim. Mana cost/sec from 20/40/60 to 25/40/55. Make slow with aghanim scaling 10/15/20% from 15% constant.
9) Give Epicenter back longer cast time. Remove ministuns from non-aghanimed version or make them only from 8th pulse.
10) Reduse Caustic Finale damage on low levels hero. Maybe 35/70/105/140 + x1/x2/x3/x4 Hero Level
11) Remove Spell lifesteal from Dispersion or reduce % to 6/10/14/18. Now it's much more useful than Backtrack. Yes, i know, that it can be countered, but OP.
12) Reduce Fire Show damage
13) Increase the thickness of the Firewall's walls by 20%.
14) Made Mortal Wounds more useful on leveling. Reduce % on low levels to 15/25/35/45%.
15) Made Kracken Shell can't dispell some DPS skills as Shadow Word.
16) Reduce Waning Rift cooldown a bit. Increase Slithereen crush cooldown a bit.
17) Reduce Alpha Wolf % aura bonus to 15-20% (hello, Devour on 1st lvl), but made it stackable with Venge's Command Aura.
18) Increase Carrion Swarm cooldown and made damage as it said in description or write that it is 75/150/225/300 :///
19) Increase Reflection manacost to 60/80/100/120, rescale lenghtness to 3/3,75/4,5/5,25 and reduce illusion damage to 45/55/65/75%
20) Regain Chronosophere level progression or made owner taking lower damage when in Chronosphere, reducing by 10/30/50%.
That's all now, thx for reading. And i waitingh, what you think about all this...