Tactics for Necropolis.

if there's air magic, then yes, the slow effect is removed... although it's a pity to have to rely on someone else - it's more enjoyable to use some kind of explosion -))))
Water magic, in addition to prayer and teleportation, also has a global dispel, which can sometimes be useful, and it also allows for cloning, which is also pretty good. Therefore, I think it's worth taking water when playing as a Warrior - it's not a given that you'll get air magic in the near future.