There is a labyrinth in the way to the final boss of the Feaster of Souls Quest, that you can fail to pass. So, every time you make a try, 2 death tools are 'used' (they disappear).
The ways of failing the pass are, getting hit by the ghost's attacks, hit by the energy of the walls (which change their location) and if you walk over the spider webs.
Images from tibialife.com.br