"btw this is a glitch to dont flame saying this is helpfull, i never said it was en exploit, its just a fun glitch... anyways..."
anyways what you do is right click on the bucket of water then cast and spell, dont have a target selected, you will still have the buck in your hand and no green circle casting area... now select frost nova and right before you cast it press z to get otu your sword, if done correctly you should have your sword in the air while your casting frost nova then if you move and stop casting it youll have the bucket and sword in the same hand at the same time... to get the third weapon "both weapons the bucket and sword should be in your off hand" just simply weild a off hand weapon the second your done casting or interupting casting, if done correctly youll have 3 things in one hand at once :P
have fun, orange