Rod of Ages buffs in patch 13.1 will boost Kassadin, Anivia

League of Legends patch 13.1 buffs AP item Rod of Ages, which strengthens scaling mid lane mages Anivia, Kassadin, and Ryze.

Syndra Counters - Best Counter Picking Stats and Matchups for LoL Patch 13.24

Riot changed Rod of Ages & Archangels to make Kassadin God-Tier (While it sucks on other champs)

Anivia Counters - Best Counter Picking Stats and Matchups for LoL Patch 13.24

Here's why Swain, Kassadin, and other battle mages might become relevant again in League Patch 13.1 - Dot Esports

KASSADIN vs ANIVIA (MID), Rank 1 Kassadin, Rank 7, 68% winrate, 17/3/8, TR Challenger

Here's why Swain, Kassadin, and other battle mages might become relevant again in League Patch 13.1 - Dot Esports

Annie Counters - Best Counter Picking Stats and Matchups for LoL Patch 13.24

Rod of Ages is misleading and overhyped : r/leagueoflegends

Patch 13.4 notes - League of Legends Patch Notes - RiotWatch

KASSADIN vs ANIVIA (MID), Rank 1 Kassadin, Rank 7, 68% winrate, 17/3/8, TR Challenger

PBE datamine 2023 January 17 (patch 13.2): Phreak's ADC changes and Orianna buffs : r/leagueoflegends

VPBE, League of Legends Wiki