I love cards that bounce around the table. I also love somewhat uncontrollable cards that have varying outcomes due to complete chance. This is why, out of the many, many hilarious and fun custom cards I've made over the years, I am going to have to pick...
drumroll please...This one.
I love it because of its flavor, its fun, and its uncontrollability. Obviously, there are ways to build your deck in a fashion that will put you in a better position no matter what the outcome of the roll (for example, graveyard / artifact synergy builds), but there is always that dice roll.
NOTE: I actually designed this card before the AFR set, so dice-rolling was only an un-set thing. This is a much more realistic card now!