Ryze, Azir, Galio, and Tristana very obviously need nerfs. After all, they're completely dominating on the pro stage. Luckily, nerfs are exactly what they're getting, according to Riot's post on the official League of Legends forums today.
Both Galio and Tristana have remained top tier picks professionally since Worlds concluded in November, but Azir and Ryze are slightly more recent developments.
...
