http://heroes-newerth.com/heroesMal, Specifics. Sages Lore(Vindicator[Silencer port]) No longer last 10 seconds. It lasts 8 seconds but does the same amount of damage in that time. Demented Shaman(Dazzle port) Healing Wave can be cast on creeps regardless of health status to do full damage to an enemy. Dazzle's Shallow Grave was replaced by Arcane Hide. which Reduces 50% of all incoming non-DoT damage for 15 seconds or 400 damage.(It soaks up nukes) Demented Shamans Ultimate reduces enemy armor and boost friendly armor.
Theres 2 cases of specifics.
Puppet master(S2 games original hero)
The Puppet Master ties up a target enemy
with puppet strings. The strings slow down
the enemy’s attack speed and restrain movement.(5.25 seconds? i think)
Puppet Show: The Puppet Master enslaves an enemy unit
as his Puppet. The target is driven crazy and
will attack the nearest unit, be it friend or foe.(4 seconds)
Whiplash: Imbuing his attack with his magical Puppet Strings,
the Puppet Master is able to increase his base damage
and unleash devastating attacks that damage multiple enemies.(On every 5th attack, attacks do 2.0x critical strike and apply 100% splash damage in 150 radius)
Voodoo PuppetUltimate:The Puppet Master imbues the essence of a target enemy in his Puppet. The Puppet can then be attacked by the Puppet Master or any of his allies. The puppet takes increased damage, and transfers damage taken to the target as Magic damage.(Puppet 950 Health,5.5 magic armor, and takes 210% damage)
I've only listed some changes from DotA and 1 original hero. All the stats I posted at max level numbers