AS scaling is what ALOT of Garen mains have been asking for on E for along time. The On-Hit was over the top and way to strong honestly. Garen E actually deals more damage now than it used to EVEN if you build NO AS!
Current Garen E:
5 +1 Spin per 3 lvls (Max 10)
14/18/22/26/30 + .36/.37/.38/.39/.4 Total AD Per Spin
Shreds at 4 hits (4/5 the way in)
PBE Garen E:
8 +1 Spin per 20% AS
3% AS per Lvl = 51% at lvl 18
9/15/21/27/33 +.26/.295/.33/.365/.40 Total AD Per Spin
Shreds at 6 hits (3/4 the way in)
At lvl 1 Garen: No Items.
66AD (Base)
Current:
[14+(.36x66)]x5spins = 188.8 total damage.
PBE:
[9+(.26x66)]x8spins = 209.28 total damage.
At lvl 18 Garen: No items.
142.5AD (Base)
Current:
[30+(.4x142.5)]x10spins = 870 total damage.
PBE: With no AS items he will have 8+51/20 = 10 spins (technically 10.5 spins but I don't think the .5 gives any damage.)
[33+(.4x142.5)]x10spins = 900 total damage.
On Current & PBE Garen every 25AD increases E damage by 100. (at lvl 18)
On PBE Garen the first 10% AS gives 90 damage, and every 20% after that increases it by another 90. (at lvl 18). And once you start throwing in AD it increases even more. At 25AD and 10% AS = 198 E damage increase, and at 25AD and 30%AS OR a
it goes up 298 damage. Then at 50AD and 30% AS its up to 417 damage.
Also 25AD is worth 875g, where as 20% AS is worth 500g. So for LESS gold you gain just as much DPS, even more when you start combing AD and AS.