Let's just go ahead and say that every class is unfair. Every class has cards that make people cry and complain about how OP they are.
For Druid, it is the huge taunts or the removals that they have combined with the late game combos that can burst for 20-30 damage in a turn. Adding extra mana crystals can lead to very early plays that win games fast.
For Mage it is the massive AoE spells like Flamestrike that can usually wipe a board or the freeze decks that stall for several turns at a time. Antonidas is usually a game winner, and Unstable Portal, while unreliable, can make a huge difference.
For Rogue it is the pumped weapons + Blade Flurry that pisses people off the most.
Hunter has fast creature drops combined with powerful spells that synergize with their Beasts, plus some of the best Secrets in the game.
Warrior is full of Charge cards and a lot of removal, plus right now it seems like everyone and their dog is complaining about the Grim Patron warrior deck with Commanding Shout, Bouncing Blade, Frothing Berserker, and Warsong Commander.
Priest has all of the card-stealing spells like Thoughtsteal or Mind Control, I can't count the number of salty threads for those.
Paladin can also spam small creatures and buff them to hell and back, plus a crapton of Divine Shield creatures/spells.
Shaman has the overload cards that are pretty powerful and can also drop some pretty powerful creatures fast, plus the fun with totems for card draw/healing. With cards like Resurrection and Ancestral Healing, deathrattle decks were extremely powerful for them.
Last but not least, we have Warlock. Cards like Mal'Ganis make a demon deck deadly powerful and handlock is still a very viable deck due to all the card draw.
In other words, every class is overpowered
5
Now that I have had a closer look.
She scares the shit out of me.
"A natural mistake"
1
Holy Wrath on them non-believers.
"For Justice!"
5
Poor Warrior's Grommash Hellscream, but maybe better.
Raging Worgen, 2*Inner Rage, 2*Rampage & Charge. 10 Mana, 16*2 damage
"I will crush you!"
1
Ok, Add 2 Heroic Strike for an earth-shattering 17 damage. All hypothetically here.
And Garrosh Hellscream doesn't like Thrall and his windfury.
5
"Owie"
7
Using 2 cards or 2 attacks to remove one minion.
"Well played."
-1
Kobold Geomancer + Whirlwind = Warrior's Consecration
"What now..."
4
Thought he says "The great sorrow" until I read the wiki page.
"My Apologies."
1
Not in a mood for statistics. Still have no legendary in collection.
Want some of my salt?
3
FYI, scales with spell damage.
"Let me think..."