New Mob: the Trevni

Mojang said that the player would never be able to cast spells in Minecraft, but they never said anything about a tameable mob that can spell cast.

The Trevni is little purple mob with a green “rice hat” looking thing. It floats around the swamp biome aimlessly, and can be tamed by the player with Maple Syrup. Once tamed, a player could give a certain item, it would use it to defend the player. An example of an item it could use would be a Fire Charge.