|A triple sword made of weird glowing metal. Anyone hit with it stands a good chance of enjoying a variety of exciting new medical conditions... if they survive the impact of the blade itself, that is.|
The plutonium sword combines extremely brutal damage output with occasionally awesome miscast effects (irresistible damage, polymorph, confusion, petrification, malmutate) and a nasty magic contamination dose every time you unwield the thing. While it's hard to pass up its staggering damage output, randomly polymorphing opponents will occasionally turn harmless enemies into deadly foes mid-fight. Make sure you have a few potions of cancellation on hand before unwielding it; each potion you quaff will reduce your contamination by a small but significant amount.
In 0.15, the enchantment was changed from +12, +16 to +14.
Prior to 0.12, this sword would curse itself when wielded and contaminated you lightly every turn you held it. Combined with the fact that it did not inflict Transmutation miscast effects, this made it extremely hazardous and much less desirable to use.