Today’s item is only for Dungeons and Dragons, and it’s an experiment with a concept I haven’t seen yet: what i’d call non-linear spell upgrades. What i mean by that is that normally, if you want a spell to have a greater effect, you simply cast it at a greater level according with the spell slots you have available, and the spell scales linearly with the level of the spell slot. Usually for damaging spells you add 1 or 2 extra damage dice per spell slot level, and for others you have extra targets or a greater duration. However with this type of item, you improve the base effects of a spell in a different way than that. Rather than further butchering a very simple explanation however, i’ll just go ahead and give you the item itself.
This particular one is based on debuff-type spells, and specifically Bestow Curse, Elemental Bane, Hex, and Slow. Admittedly, it’s quite powerful, but you can nerf it by picking some of the spells instead of all of them. Besides, it’s the powerful items that are the most fun. Besides the spell upgrades, it’s also got some extra effects as well.
Wondrous Item, legendary (requires attunement)
This amulet is made of polished silver, with a pure onyx stone embedded. When you hold it or wear it, you begin to hear faint, unintelligible whispers. You cannot understand what they say, but you feel unsettled by them.
While you are attuned to this item, you gain the following benefits:
- When casting the Bestow Curse spell, you can choose to inflict an additional effect on the target, different from the first one.
- When casting the Elemental Bane spell, you can select an additional element.
- When casting the Hex spell, the necrotic damage increases from 1d6 to 2d6.
- When casting the Slow spell, the reduction to AC and Dexterity saving throws increases to -3. When casting a spell that takes 1 action, the threshold to delay the spell activation is 9 instead of 11.
- You can cast these spells normally (expending a spell slot) even if you do not know them.
- When casting any of those spells, you are considered to have used a spell slot of one level higher when an enemy attempts to use Counterspell.
- When you concentrate on one of these spells, you automatically succeed on all Constitution saving throws to maintain concentration.
As i mentioned before, you can choose to only include bonuses for one or two of the four spells, rather than all of them. This is also a prime candidate for a cursed item; for example, the bearer of the periapt should cast one of the spells at periodic intervals on sentient creatures to maintain attunement, or something in that vein. The DMG also has several examples of cursed items.