Gnome

Classes: Warrior, Rogue, Priest, Mage, Warlock.

Escape Artist

Instant, 2 min cooldown. Instantly escape the effects of any movement impairing effect and gain immunity to those effects for 3 sec.

Standalone button: choose when to use it and don't chain it with all your defensive cooldowns.

#showtooltip Escape Artist
/cast Escape Artist

Expansive Mind

Maximum Mana, Rage or Energy increased by 5%, whichever your class uses.

Engineering Specialization

Your gnomish ingenuity reduces the rate of engineering devices failing or backfiring when you use them by 20%.

Eureka!

Instant, 2 min cooldown. Your next 3 non-periodic damaging abilities cost 10% less (Mana, Rage or Energy) and deal 10% more damage. For Priests, your next 3 non-periodic damaging or healing abilities cost 10% less Mana and do 10% more damage or healing. Periodic effects get nothing from it; a channeled spell is not periodic. The Mage's own tooltip is the one that leaves out non-periodic.

Standalone button: choose when to use it and don't chain it with all your defensive cooldowns.

#showtooltip Eureka!
/cast Eureka!