The full list of changes can be seen below, and includes some expected nerfs to the likes of Jayce and Yorick as well as some unanticipated but welcome buffs to underplayed champions like Miss Fortune and Wukong. Note that these changes are only on the test server and are in no way guaranteed to go live on normal realms.
Caitlyn
Piltover Peacemaker ( Q ) - Reduced damage to subsequent targets reduced to 10% from 15%
Piltover Peacemaker ( Q) - Minimum damage dealt to subsequent targets increased to 50% from 40%
Jayce
Thundering Blow / Acceleration Gate ( E ) - Mana cost increased to 40/50/60/70/80 Mana from 40 mana at all ranks.
Miss Fortune
Bullet Time ( R ) - Mana cost reduced to 100 mana from 150 mana.
Strut ( Passive ) - Time for speed boost to kick back in, after not being attacked, down to 5 seconds from 7 seconds.
Rengar
Battle Roar ( W ) - AP scaling reduced to 0.8 from 1.0.
Savagery ( Q ) - Base damage dealt increased to 30/60/90/120/150 from 30/55/80/105/130.
Thrill of the Hunt ( R ) - Bonus movement speed increased to 20/25/30 % from 10/15/20 %
Vayne
Base Movement Speed increased to 305 from 300.
Vladimir
Tides of Blood ( E ) - Damage reduced to 60/85/110/135/160 from 60/90/120/150/180.
Wukong
Crushing Blow ( Q ) - Now grants next attack an additional 125 Attack Range.
Yorick
Omen of Pestilence ( W ) - Mana cost increased to 55/60/65/70/75 Mana from 40/45/50/55/60 Mana.
Ziggs
Mega Inferno Bomb ( R ) - Damage taken by enemies further away increased to 80 % damage. from 75%.
Links
Surrender at 20 - Source
