Current Mage Changes on PBE in a nutshell
Buffs: Multiple champs getting base mana increased by +100~ mana Multiple champs getting base mana regen increased Doran's Ring benefits mages with low mana regen more Doran's Ring has +5 to minions RoA +20 AP Lost Chapter +10 AP Luden's 100G less
Nerfs: Tear refunds less mana because of base mana and regen buffs Base mana at Lv 18 about ~200 less for most mages Spellthief's line -25% base mana regen
Notable changes: Lost Chapter line gold shifts The unavoidable Ryze rework and soon to come Azir
What people should be mad about: Unsealed Spellbook getting curb stomped into oblivion.
What people are actually mad about: Losing a minuscule amount of mana and mana regen on mages that build large quantities of said stats.