Re @-@ appearing in " Kir 'Shara " was the traditional Vulcan weapon , the lirpa , which was first introduced in The Original Series episode " Amok Time " . The lirpa is a long shaft with a crescent blade on one end and a spiked cudgel on the other . Brand new props was built for this episode , modifying the original design by making them more lightweight . They was wielded in " Kir 'Shara " by Vulcan commandos , who was all played by stunt actors in non @-@ speaking roles . Additional stunt doubles was required for Archer , T 'Pol , T 'Pau and Talok while two puppeteers was needed for the Andorian antennae seen on screen .