My general sentiment is that if the item in question doesn't change the monster or character's stats, abilities, and powers (IE - it is a MacGuffin to be fought over) then using a Stunt to contest control of it seems quite appropriate.
Taking away a held light source, weapon, holy symbol, arcane implement, shield, sword, or other tool is much more questionable territory for the reasons expounded upon above. A monster with a particular custom ability to do any of these things should be flavored and balanced appropriately. It would typically become an Encounter or Recharge power, or an at-will power with low damage expressions - etc. It shouldn't just be an "extra" handed to a humanoid NPC or the like.
If you want to shift the terrain of an encounter by denying light to the PCs, look into monsters with Powers that create Areas of darkness. The Goblin Hexer monster might be a good starting point with his Stinking Cloud effect. See if you can splice the Dark Ones entry with the Goblin Hexer entry to create a Dark Hexer.
- Marty Lund
Taking away a held light source, weapon, holy symbol, arcane implement, shield, sword, or other tool is much more questionable territory for the reasons expounded upon above. A monster with a particular custom ability to do any of these things should be flavored and balanced appropriately. It would typically become an Encounter or Recharge power, or an at-will power with low damage expressions - etc. It shouldn't just be an "extra" handed to a humanoid NPC or the like.
If you want to shift the terrain of an encounter by denying light to the PCs, look into monsters with Powers that create Areas of darkness. The Goblin Hexer monster might be a good starting point with his Stinking Cloud effect. See if you can splice the Dark Ones entry with the Goblin Hexer entry to create a Dark Hexer.
- Marty Lund