A few other types of units and special abilities appear to require tweaks. The frost wyrm which is supposedly the most powerful and toughest weapon of the WoW cataclysm Gold side, isn't particularly sturdy and its unique frozen breath feature isn't particularly useful. The monster, though definitely terrifying, is expensive, but it's only marginally more durable than the units like the humans knight or the taurens of the orcs (Blizzard has recently reduced the price of this unit, too). The banshee's anti-magic sleeve is too expensive to be of any value.
A very well-known WoW Cataclysm Classic units is the necromancer due to his ability to summon huge army of skulls. When they are in groups, necromancers could seem unstoppable, since the skeletons could be fatal in their the numbers they are. The necromancer's power to revive the dead could be a bit less effective. However the unholy frenzy power can boost a unit's speed of attack but reduces its energy, could benefit from an increase in power. Currently it's damage it causes to the unit is outweighing or at least limit its utility. The blast spell for corpses seems to be inadequate, especially in the case of increase the number of skulls.
The only thing more terrifying than frost wyrms' freezing attack. However, the frost wyrms appear to be a bit weak at the moment.
There are many World Heroes of Warcraft could be less powerful versions of the races that are heroes. Death knight's animate dead abilities are similar, however not as effective as the human Paladin's resurrection. The carrion swarm of the dread lord is simply underpowered. The lich's dark spell requires you to destroy one of your creatures in exchange for greater magical power, while the archmage of humanity gains an ability to increase naturally the amount of mana he can regenerate. Maybe these issues are offset by buy Cataclysm Classic Gold other strengths.