Mangle ShadowHood

You enter the Dawnstar sanctuary and see Mangle working at an alchemy lab working on different poison's Oh hay Listener, need any poison for contract's? I just created this new toxin, take a look. She holds up a small vial of blue liquid I haven't named it yet but it will paralyze the target and then slow they're heart beat until they're heart stops completely, it's a little more humane than other methods. We have to kill but we don't have to have them suffer. What do you think?