Changes in Anivia
Who here no longer stuck with the enemy inside the Jarvan IV cataclysm, or had their path blocked by a Trundle ally?
This same problem happens with the glacial wall Anivia, and so I am suggesting a change in their physical structure when cast in the game.
Using the same mechanics of the new gate added in the base of the entries in the new Summoner's Rift, where allies can pass and blocks only enemies.
The wall could have a translucent and robust way the shell Braum and the wind wall of Yasuo.