The Poison Wrench is a weapon that Maximilian can obtain in Dark Cloud 2. It is the direct evolution of the Stinger Wrench. It has the "Poison" ability : one of your attacks caused by this wrench has a chance cause "Poison" to the enemy, slowly reducing their health to 1 HP, without killing them. It has the standard 5-hit combo, has quite good stats, but it will not inflict much damage to armoured enemies, because it lacks of Smash stat. You can find the Poison Wrench in dungeons' chests or you can invent it. It cannot be bought anywhere.