Talk:Galio/@comment-75.53.155.152-20120522025044/@comment-3546228-20120522150112

Champs like Blitz and Udyr that have a stun/knockup on their next attack cancel his ultimate immediately. Other champs that have dashes that CC, like Shen can cancel his ultimate. If you break the channel early he's countered. Also, champs that shred magic resist like Heimer's turrets, Morgana's and ESPECIALLY Trundle's  will reduce his AP and severely hinder his damage and survivability.

As for items, make sure you have tenacity. It will let you break free of his ulti early.