Unreal Tournament Classes also has a spell system. Iridium can be found in respawn points, or it can be picked up from fallen enemies or fallen comrades. UTC features a HUD that tells you how much Iridium you currently have, so you can always know when you need to pick up some more to get activate a skill. Currently, the menu will not be fully shown unless you run UT at a resolution of at least 800x600. The UTC team plans to fix this in a future release.
Online support is available, but as usual, it is kind of hard to find populated servers.
That's where the mod's bot support shines. The bots use their classes well, although they are somewhat reluctant to use their skills. They also don't change classes during mid-game, but that doesn't really matter since the bots in the other two mods have this trouble as well. Unreal Tournament Classes is in the process of getting an upgrade, with new skins for each class, as well as more weapons. Contact us for more information on GameSpy Industries.