Stormbound Arms is a rare major card out of the New mechanic pool. Attunement: your Main attack deals Storm damage. One Attunement per input.

Storm rewards exactly what a Main provides — rapid hits stacking Shock charges and the vulnerability they bring. The natural start for a multi-hit Overload build; splitting or echoing Mains shine.

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 Storm.

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