Spread carnage and corruption!
Henzell says...
  1. Equivalent to +15 EV vs ranged attacks (spells, bows, etc)
  2. In 0.19-, was a level 2 Charms/Air spell that lasted indefinitely, with a power-based chance of ending every time it repelled a missile. In even older versions, was a simple duration.

Information based on master branch and the great LearnDB.
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