Hwei vs Galio Mid Matchup
Hwei Mid wins 53.6% of 1,137 Low Elo games against Galio Mid, +1.4 points vs expected, 2-patch window 26.19-26.20.
Researched on LoL patch 26.20. Tips are written to hold at any rank; stats come from Low Elo ranked games up to patch 26.20.
How to play as Hwei
Save EQ for Galio's Justice Punch(E) and keep minions from standing between you and his dash path so the fear can connect. Poke with Q while holding that escape tool.
Once Galio gets too durable to kill, prioritize pushing the wave and staying healthy rather than spending all your mana trying to force a solo kill; meet him with your team in later fights.
Galio's Justice Punch(E) commits him to a forward dash, and Hwei's EQ fear can interrupt that engage if it is held for his entry and not blocked by minions.
How to play as Galio
Do not spend Justice Punch(E) into Hwei's ready fear. Farm and punish when he steps into your engage range, then use Hero's Entrance(R) to create pressure elsewhere if Hwei keeps the lane at a distance.
Sources
These notes come from r/HweiMains and r/galiomains, checked against the champions' abilities.