Similar to weps like the Eyelander and the Bazaar Bargain, this could have the heads system...sort of. I was thinking there could be a 5 segment bar at the bottom right corner of the screen (Your spice meter) that fills one segment upon every backstab. When you press the special attack button (the item defaulted to your medi sheild in mvm) it activates an attack speed boost and a movement speed boost, multiplied by .5 per segment used, for 15 seconds, keeping with the spicy chili pepper theme. So if you only have one segment, you get a x2 attack speed and movement speed, but if you have 2 segments filled, you get those boosts x2.5. While in spice mode, you can't switch weapons. The downside to the wep is that the corpses remain burning, releasing smoke, for 10 seconds.