The Enchanted Garrote Wire is the primary weapon of Alex Fierro.
Loki taught Alex an enchantment but Alex didn't trust it so she used it on a clay cutter, which to her surprise, worked.
Alex successfully uses the garrote to kill Grimwolf the lindworm at Hotel Valhalla. A few minutes later, Alex decapitates Magnus Chase with the same weapon to prevent his head from exploding and causing critical damage to the hotel.
In Jotunheim, Alex casually demonstrates the power of her weapon by effortlessly cleaving a huge rock into two.
After Sif brings them to Asgard, she replaces Alex's garrote with a golden one woven from her hair to better match her disguise as a bride. This new garrote is identical in all but material and colour; it carries the same enchantments. At Bridal Veil Falls, Alex uses it in battle with Thrym.