Venombound Arms is a rare major card out of the New mechanic pool. Your Main deals Poison damage. Replaces any other Attunement on your Main.

You can take it once · it only turns up when your Main ability can actually use it · it can be offered for 11 of the 34 abilities.

It pushes your build toward Poison.

Only one card can reshape that ability this way — this one, or Flamebrand Arms, Rimebound Arms, Stormbound Arms, Bloodsworn Arms, Stonebound Arms, Lightsworn Arms and Voidtouched Arms. Take one and the rest are gone for the run.