Faust tosses four random items. This super ignores the item limits, so you can use it even if other items are already out (including after another super). By it's very nature, the results from this super are completely unpredictable and can sometimes lead to a measly 4 donuts, or a deadly mix of bombs, meteors and mini-potemkins. Bombs have a tendency to override the effects of some of the other items by blowing them up, or by virtue of out-lasting the thrown items.
If you are feeling adventurous, you can use the super on knockdown, or if your opponent is respecting you to much. The average results are actually pretty decent, but if you don't want to rely on faith, Meter can be more reliably dumped into other things. If you want something really exciting, item throw > item super > item super is pretty much the best possible thing you can do in a match, especially after a gold burst.