Uber weapons (and a not-so-uber one)

Idea here: http://smf.cataclysmdda.com/index.php?topic=5108.0

Uber weapons with uber stats and uber impracticality too. Mainly for flavour and as a ground work, intended as weapon for super mutants and cyborgs (especially NPCs, imagine a huge mutated NPC charging at you and swinging a block buster overhead). And Rule Of Cool too.

The not-so-uber weapon is the flail (http://en.wikipedia.org/wiki/Flail_%28weapon%29) aka the sane version of the block buster.

In this RP also is recipes to those aforementioned weapons and some format.
Any feedbacks are welcomed, expecially those about stat.