Silva

Silva is the goddess of nature, who protects all living things. Her earthly manifestation, located in the elven nation of Lunethia, is a giant holy tree which reaches the clouds. Her alignment is N+ (neutral leaning towards lawful).

Praying

Praying to Silva has various effects. If you are in a good relation with her, and are missing a limb, then she will summon a new limb for you made from one of her aligned materials.

If you are not missing a limb, then it depends on your location. If you are above ground, she will summon friendly wolves, and if you are underground, she will cause an earthquake in the level, which will destroy traps, explode mines, and cause damage to the walls.

She may also summon her Angel or possibly her archangel Nux.

If you have a bad relationship with Silva, she will polymorph you into a rat, jackal, or mutant ass

Altars

There is always an altar to Silva in UT level 4.

There is also a priestess of Silva in New Attnam who will cure leprosy (20 gold), cure poison (5 gold), re-attach a limb (10 gold), or summon a new limb (20 gold).

Aligned Items

Offering these items to Silva at her altar will receive a greater bonus towards your relation with her:

quarter staff, belt of levitation, thunder hammer

Or an item made of any type of wood, most cloths, all fruits and vegetables, and most types of rock. See the List of materials for more details.

Bug

Praying to Silva on GC6 leads to an infinite loop. Don't pray to Silva on that floor.