Rip Blades (3.5e Equipment)
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Rip Blades are +1 phase subtle longswords that always come in pairs. When both are wielded, you can take a full-round action to open and go through a gate to anywhere on the same plane by slicing through space with your swords.
Moderate conjuration(teleportation); CL 21; Craft Arms and Armor, etherealness, keen edge, gate; Market Price: 362,315gp. Cost to Create: 40,247gp + 1,465XP