When those keys are in your inventory, you'll be able to unlock the doors and fight the boss inside. When it's used, it disappears from your inventory and you won't be allowed to go back inside the room after you defeat the boss, unless you have another key.
Those chests you're talking about, was it called an "Obsidian Chest"? If so, that's part of a task in late-Dragonspyre. If not, those are second chance chests where you can throw in crowns for a chance in getting more drops.
You can either purchase them from packs (there are several you can get them from, check on the wiki), or you can farm certain bosses for them (again, check on the wiki).
When those keys are in your inventory, you'll be able to unlock the doors and fight the boss inside. When it's used, it disappears from your inventory and you won't be allowed to go back inside the room after you defeat the boss, unless you have another key.
Those chests you're talking about, was it called an "Obsidian Chest"? If so, that's part of a task in late-Dragonspyre. If not, those are second chance chests where you can throw in crowns for a chance in getting more drops.
Well you can farm them from a selected number of bosses like: Gold: RattleBones (Rank 14) Omen Stribog, RattleBones (Rank 7) (etc,) Stone: Krampus (Rank 14, 15, 6) Ra, Izft (etc,) Wooden: Plague Oni, Oakheart, War Oni, Sapoti (etc,)
There's Ton's More Too Just Check Them On These Links:
Well you can farm them from a selected number of bosses like: Gold: RattleBones (Rank 14) Omen Stribog, RattleBones (Rank 7) (etc,) Stone: Krampus (Rank 14, 15, 6) Ra, Izft (etc,) Wooden: Plague Oni, Oakheart, War Oni, Sapoti (etc,)
There's Ton's More Too Just Check Them On These Links:
