"Anytime a Dwarf dies, gain a Powerful Rampage for 10 seconds."
With this item in your loadout, if a dwarf dies you get a 10 second proc. It costs 8 loadout points and 5000 gold.
It is found in the default Warrior Class.
Beside Bruce's Sword which is capable proccing on kills during weakness magi, this is the only ability that will let a user gain procs during weakness magi events, you can even roll it too.