Talk:Janna/@comment-24971427-20180203024939/@comment-26808509-20180315104559

Celerety shouldn't be reduced to the AD/Ap value it gives. It is true that the damage you gain from it is pretty low, even with high numbers, but don't Forget about the movementspeed it gives. 3% seems pretty low, but since it's a % increase, flat movementspeed buffs like Miss Fortune W, River Walking or even Item Effects like Boots, Black Cleaver ect. will be increased aswell.

I don't say it's a great rune, but it's ok for a tier 3 rune. Don't expect it to offer as much damage as the other ones in this tree tho, as this is not the Primary aim of it.

Back to Janna. Her W gives her Bonus movementspeed based on her AP, so if you really want high values on her passive you should try to build lots of AP with Movementspeed Focus (Lich Bande, Spellbinder, Swiftness Boots ect). Don't know the exact number anymore but I've reached something above 60 with the passive. Combined with the AP scaling of W, this spell alone dealt pretty bursty damage.