Arcane Power

2 different WoW Forever spells share the name Arcane Power. Each is a separate effect with its own tooltip; pick the one you mean to compare it with Classic Era.

• Arcane Power #12042 player ability changed For the next 15 sec, your spells deal 30% more damage while costing 30% more mana to cast.
• Arcane Power #430952 changed Improves your chance to get a critical strike with spells by ${$s1}.1%.