CiP: Armor for casters?

[Konebred]

Hey guys, once again I am in need of your expert help. Found a ring of robustness fairly early and have been rocking some mid 20-s armor most of the game. It is getting close to the end game and I was curious if it was worth throwing more points in to armor and if I do, what type of armor should I wear? I have a steam dragon hide available, but I like mottle dragon a bit better jut because I hate sticky flame in zot. I just dont have a mottled dragon hide. Should I hold out for one of those, skip armor entirely or what? Any suggestions are welcome, thanks in advance! Oh yah, the trove wants 2 cure mutation potions, but I only have 2 and no Rmut so far, should I hold out on that as well?

  Code:

 Dungeon Crawl Stone Soup version 0.10.3 character file.

Ribba Sammich the Sorcerer (DsFE)                  Turns: 89399, Time: 08:49:51

HP 162/162       AC 25     Str 15      XL: 21   Next: 87%
MP  44/44        EV 13     Int 30      God: Vehumet [******]
Gold 3694        SH 16     Dex 25      Spells: 15 memorised,  3 levels left

Res.Fire  : + . .   See Invis. : +    v - staff of fire
Res.Cold  : . . .   Warding    : . .  K - +4 robe of Augmentation {Str+4 Dex+4 Int+4
Life Prot.: + . .   Conserve   : +    E - +1 orc buckler
Res.Acid. : . . .   Res.Corr.  : .    (helmet unavailable)
Res.Poison: +       Clarity    : .    G - +2 elf cloak
Res.Elec. : +       Spirit.Shd : .    y - +2 pair of gloves "Gatrijesu" {Dex+1}
Sust.Abil.: . .     Stasis     : .    x - +0 pair of boots
Res.Mut.  : .       Ctrl.Telep.: .    l - amulet of conservation
Res.Rott. : .       Levitation : .    t - ring of Tymixaergh {rPois Dex+3 Int+2}
Saprovore : . . .   Ctrl.Flight: .    D - ring of Robustness {AC+8}

@: quite resistant to hostile enchantments, extraordinarily stealthy
A: antennae 3, demonic guardian 3, life protection 1, nightstalker 3, AC +3, Str
+2, Int +1
a: Renounce Religion


You are on level 1 of the Lair of Beasts.
You worship Vehumet.
Vehumet is exalted by your worship.
You are not hungry.

You have visited 7 branches of the dungeon, and seen 57 of its levels.
You have visited 1 Labyrinth.
You have visited 3 portal chambers: bailey, ice cave, volcano.

You have collected 6475 gold pieces.
You have spent 2801 gold pieces at shops.

Inventory:

Armour
 x - a +0 pair of boots (worn)
 y - the +2 pair of gloves "Gatrijesu" (worn) {Dex+1}
   (You acquired it on level 6 of the Dungeon)   
   
   It affects your dexterity (+1).
 E - a +1 orcish buckler (worn)
 G - a +2 elven cloak (worn)
 K - the +4 robe of Augmentation (worn) {Str+4 Dex+4 Int+4}
   (You found it on level 5 of the Lair of Beasts)   
   
   It affects your strength (+4).
   It affects your intelligence (+4).
   It affects your dexterity (+4).
Magical devices
 A - a wand of teleportation (10)
 C - a wand of hasting (5)
 V - a wand of heal wounds (6)
 Z - a wand of digging (6)
Comestibles
 i - 2 bread rations
Scrolls
 c - 5 scrolls of blinking
 j - 5 scrolls of fog
 q - 5 scrolls of fear
 F - 4 scrolls of remove curse
 L - 4 scrolls of teleportation
 O - a scroll of identify
Jewellery
 b - a +4 ring of protection
 e - an uncursed ring of life protection
 f - an uncursed ring of protection from magic
 k - an uncursed ring of ice
 l - an amulet of conservation (around neck)
 m - an uncursed ring of fire
 o - an uncursed ring of protection from fire
 r - an uncursed ring of protection from fire
 s - the cursed ring "Faig" {cTele Acc+3 Dam+3}
   (You acquired it on level 4 of the Swamp)   
   
   [ring of teleport control]
   
   It affects your accuracy (+3).
   It affects your damage-dealing abilities (+3).
   It has a curse placed upon it.
 t - the ring of Tymixaergh (right hand) {rPois Dex+3 Int+2}
   (You found it on level 5 of the Elven Halls)   
   
   [ring of poison resistance]
   
   It affects your intelligence (+2).
   It affects your dexterity (+3).
 z - an uncursed amulet of warding
 D - the ring of Robustness (left hand) {AC+8}
   (You found it in a Labyrinth)   
   
   [ring of protection]
   It affects your AC (+8).
 H - the amulet "Datryp" {Stasis rF+ rC+ Dex-1}
   (You found it on level 5 of the Elven Halls)   
   
   [amulet of stasis]
   
   It affects your dexterity (-1).
   It protects you from fire.
   It protects you from cold.
 P - an uncursed amulet of resist corrosion
 Q - an uncursed amulet of clarity
 W - an uncursed ring of wizardry
 X - an uncursed ring of protection from magic
Potions
 d - 9 potions of heal wounds
 g - 5 potions of levitation
 h - 8 potions of curing
 p - 3 potions of resistance
 w - 2 potions of invisibility
 T - 6 potions of speed
Magical staves
 v - a staff of fire (weapon)
 B - a staff of energy


   Skills:
 - Level 15.1 Fighting
 - Level 8.2 Armour
 - Level 2.0 Dodging
 - Level 7.2 Stealth
 - Level 8.0 Shields
 - Level 21.8 Spellcasting
 + Level 13.2 Conjurations
 - Level 9.1 Charms
 - Level 0.9 Summonings
 - Level 11.4 Translocations
 - Level 2.1 Transmutations
 + Level 13.3 Fire Magic
 - Level 4.6 Air Magic
 - Level 1.0 Earth Magic
 - Level 5.2 Poison Magic
 - Level 1.0 Evocations


You have 3 spell levels left.
You know the following spells:

 Your Spells              Type           Power        Failure   Level  Hunger
a - Flame Tongue          Fire/Conj      ######       0%          1    None
b - Orb of Destruction    Conj           ########..   1%          7    Choko
c - Sticky Flame          Fire/Conj      #########    1%          4    None
d - Conjure Flame         Fire/Conj      #########    0%          3    None
e - Fireball              Fire/Conj      #########.   1%          5    None
f - Ignite Poison         Fire/Trmt      ########..   1%          5    None
g - Poisonous Cloud       Pois/Air/Conj  #######...   2%          6    None
h - Iskenderun's Mystic   Conj           ########.    1%          4    None
i - Abjuration            Summ           ######....   1%          3    None
j - Flight                Air/Chrm       #######...   1%          3    None
k - Phase Shift           Tloc           ########..   1%          5    None
l - Apportation           Tloc           ########..   0%          1    None
m - Haste                 Chrm           #######..    4%          6    None
n - Blink                 Tloc           N/A          0%          2    None
o - Bolt of Magma         Fire/Erth/Conj ########..   1%          5    None


Dungeon Overview and Level Annotations

Branches:
Dungeon (23/27)            Temple (0/1) D:4             Orc (4/4) D:10
    Elf (5/5) Orc:4          Lair (8/8) D:10          Swamp (5/5) Lair:5
 Shoals (5/5) Lair:6        Slime (0/6) Lair:6        Vault (7/8) D:14
  Blade (0/1) Vault:4       Crypt (0/5) Vault:2     

Altars:
Ashenzari
Elyvilon
Kikubaaqudgha
Makhleb
Nemelex Xobeh
Okawaru
Sif Muna
The Shining One
Vehumet
Xom
Yredelemnul
Zin
Beogh

Shops:
D:4: =  D:11: *  D:21: *  D:23: /  Orc:4: /*![(  Elf:2: [  Elf:3: /  Elf:4: /  Vault:5: ?  Vault:6: ?

Portals:
Hell: D:21 D:22 D:23 Lair:8
Abyss: D:22 D:23
Trove: D:10 (give 2 potions of cure mutation)
Ziggurat: D:21 (8540 gp)

Annotations
Shoals:5 Ilsuiw


                    Innate Abilities, Weirdness & Mutations

You have a pair of large antennae on your head (SInv).
You are completely covered in thin metallic scales (AC +3, rElec).
A powerful demonic guardian rushes to your aid.
You resist negative energy.
You are completely attuned to the shadows.
Your mind is acute (Int +1).
Your muscles are strong (Str +2).


[smock]

I'd enter the trove, as you don't have any mutations now. Between the dungeon, zot and V8 you may find another one anyway. If you're only going for 3 runes mutations are very unlikely to matter. If you're going for more, you'll likely find another cure mutation potion anyway. While you're unlikely to find a stellar armour in the trove, I think its worth checking before you use any scrolls to enchant an armour.

You have excellent dexterity so consider training dodging. I'd go for 10-15. Of course, you'll still need XP to get firestorm castable. But I'd get some dodging at 13 EV is really low.

Armour skill does (almost) nothing in a robe. Don't train it unless you use armour with a higher base AC.

I think it's worth upgrading to steam or mottled dragon armour soon. Fire/ice DA might be a good goal if you're doing more than three runes: fully enchanted they might give you GDR worth 5 AC or more. At 9 armour skill, a fully-enchanted SDA gives +14 or +15 AC (5 base + 5 enchantment + 2 due to armour skill + 2 or 3 due to DGR), much better than the robe's +6. MDA would give +17 or +18 at just 8 armour. (I'm just now trying to figure out GDR, so my numbers are probably a bit off.)

[Konebred]

I just started wearing the robe really. Never had any rPoison besides some orcish leather armor until I finished elf. Honestly I really have no idea how armor works when it comes to affecting spells and accuracy and all that.

[eeviac]

What armour you wear depends entirely on what you want your dude to do. If you want firestorm on a 3 rune Ds, mottled is as heavy as you should go. However, in your case, assuming you want to firestorm dudes, you couldn't ask for better armour than your robe. Large int boost for spells, large dex bonus for dodging. Robustness for AC.