Sapphire Ring of the Deepest Skies, what does it do?

I've noticed that this ring has a reactive effect that produces a shower in a random adjacent tile, but I have no idea what this shower does. Anyone care to input on this?

 

Code:

<spell name="Healing Rain"
        type="targetfloor"
        icon="skills/spells/lethian_mist32.png"
        mineTimer="9"
        mineUseGlints="1"
        mineGlintDensity="8"
        mineSpritePNGSeries="sprites/sfx/raindrop/raindrop"
        mineSpritePNGFirst="0"
        mineSpritePNGNum="6"
        mineSpritePNGRate="100"
        mine="1"
        mineradius="1"
      minesMustBeUnobstructed="0" >
    <description text="Healing Rain."/>
    <effect type="heal" amount="3" amountF="0.1" affectscaster="1" taxa="Player" />
    <anim sprite="sprites/sfx/water_impact/water_impact" frames="7" sfx="choir" centerEffect="1"/>
  </spell>

It's a non-permanent mine(disappears when any player/monster walks on it), if the player triggers it, then the player is healed for 3+0.1.

 

Ah. Thats a neat trick

How do you mine for this data anyways?

Also I think the animation for it is a bit off. You'd think to go into the droplet animation but you actually have to walk one tile above it.

 

itemDB.xml and spellDB.xml in the /dungeons of dredmor/game/ folder, and the /dungeons of dredmor/expansion/game/ folders(expansion, expansion2, expansion3).

 

Yeah that was driving me crazy. I had no idea what was causing it. Character's dead now, so I can't enjoy it, but still, thanks.