While playing Spiral Knights, I had thought about some of the damage types and status effects, these thoughts led to me thinking up some ideas for some new ones. Allow me to start out with status effects.
As of now, we have 3 elemental effects - Ice (Freeze), Fire (Fire), and Electricity (Shock). Three very overused, very common elements, found in almost every game that includes elements in it's weapons and/or attacks. To add to the uniqueness of Spiral Knights, I think it would be a good idea to add some unique, less-commonly-used elements.
Water (Soak), and Wind (Dizzy).
Example of the Water (Soak) effect: Enemies or knights inflicted with soak, have unreliable movements, tending to slide around, and slip.
Example of Wind (Dizzy) effect: Enemies or knights inflicted with dizziness, have occasional misses when using their attacks (for example, swinging your sword at an enemy may end up having you 'accidentally' swing to the side, same with an enemy trying to attack you).
[Colors of effects]
Water - Dark blue (so not to be confused with Ice's light blue)
Wind - Lime green (so not to be confused with Poison's dark green)
[Status symbols]
Water - dark blue background with a water drop in the center.
Wind - lime green background with the shape of a shifting breeze in the center.
Now let me move on to the damage type I had thought up; Light.
[why should this damage type be added?]
We already have "Shadow", so would it not make sense to add the clear opposite of it; Light? Many games use light-based weapons, it only makes sense for Spiral Knights to add such. And besides, doesn't light normally represent heroes? Shouldn't the spiral knights, the "heroes" of this game, have access to light weapons?
[What does this damage type do?]
"Light damage" has no special status effect that accompanies it (such as how Shadow has Curse, and Elemental has Freeze, Fire, and Shock). However, weapons that deal Light Damage may also deal status effects NOT exclusive to light weapons only, these include fire, and stun.
[What enemy families would be weak to it?]
Undead could possibly be added to the "weak to light damage" list, but it's not intended for them specifically. Instead, "Swarm" (this include swarm-corrupted enemies found in shadow lairs) would be the family that is weak to Light Damage. Right now, Swarm has no damage type that it is specifically weak to. Light would be perfect for this.
[What weapons/armor are there right now that could use Light?]
There are currently four weapons, and one set of armor that could use Light.
Swords: Avenger, and Divine Avenger.
Guns: Silversix, and Argent Peacemaker.
Armor: Divine Mantle/Divine Veil.
[what would be the end result of adding these two status effects, and damage type?]
The end result would be:
1 - The possible addition of many new levels (Hydro Storage, Gust Complex, Light Lands etc) and enemy variants (water/wind lichen and so on) could be added, providing some interesting new content for the players.
2 - New weapon types could be added (The Brandish line could possibly have a Lightblade, Hydroburst Brandish, and Gustburst Brandish, and the autogun could possibly have more variants such as the "soaker" (an autogun that uses the water element), and Divine Autogun (An autogun that uses light)), providing more variety to the weapons users could obtain.
3 - A new family of enemies could be added that make use of the new light damage (perhaps a type of angelic enemy or something), and be weak to Shadow.
4 - It would spark interest in long-time players, by giving them new weapons to obtain and new enemies/levels to defeat.
5 - A new boss could possibly added to new light-based levels, finally giving us a 5th boss (or 9th and 10th if you count the fact that there are Shadow Lair versions, and probably would be a Shadow Lair version of this new light boss if it were added).
Feedback?
"We already have "Shadow", so would it not make sense to add the clear opposite of it; Light?"
The opposite of Shadow is Elemental; and that is evident since all the items you listed that could be "Light", have elemental stats.
@New Types:
Water and Wind aren't necessarily bad ideas, but that means that OOO will have to come up with new Stratums for them. And that could be a problem since, I believe all combinations of Minerals to create gates are taken.
~Sev