Mage shifter build

[jeminizero]

Hello, I have a small question: What applies to Shapechange for AC? The calculations above indicate Tumble ranks and Dodge feat apply. What about Luck of Heroes and Armored Skin?

[Rudolph]

What about Luck of Heroes and Armored Skin?

Those two definitely do. There is a wiki entry that covers much of the details (though not all) here:
https://wiki.bgtscc.net/index.php?title=Polymorphing

[jeminizero]

I ran some simple experiments using a scroll of Polymorph bought from the High Hedge Wizard.

TL;DR: Currently, it seems that Tumble Ranks, Luck of Heroes and Armor Skin DO NOT apply.

Details:
1. Character has 20+ tumble ranks, Luck of Heroes and Armor Skin
2. Transform into a troll without gear. Listed AC: 20 (same as Troll base AC as listed in the Polymorph page, so none of the above apply)
3. Transform into a troll with +3 Deflection gear. Listed AC: 23

[Rudolph]

Tumble and LoH do apply, but the AC values in that green wiki table are not correct (or at least not clear). Here's a conversation I had on the subject that might help. Note especially Sun Wukong's list of form ACs. Hopefully the thread will help you get there faster than it took me...
viewtopic.php?f=64&t=65260

[Steve]

I'm going ahead to recreate the table in a non-Image file format, so it can can be wiki-adjusted with glee from now on...and includes the supposed REAL Base Armor stats for—at least—the shapes from the Shapechange spell.

Any more changes needed before I publish?

BTW...(do-me)' BBcode and tables ssssuuuuuucccccckkkkkkkk. Now I remember why I quit being a web person and started doing...other things.

Polymorph
Race	Focus	Offensive	Defense	Dmg	STR	CON	DEX	Base AC
Kobold	Weapon Enchantment carries over	Kukri,Sling	-	-	9	10	13	8
Goblin	Weapon Enchantment carries over	Rapier,Spear		-	11	12	13	8
Gnoll	Weapon Enchantment carries over	Halberd	-	-	15	13	10	8
Ore	Weapon Enchantment carries over	Longsword, Crossbow	-	-	17	12	11	7
Troglodyte	Weapon Enchantment carries over	Spear	-	-	10	14	9	10
Minotaur	Weapon Enchantment carries over	Greataxe	-	-	19	15	10	7
Troll	Regen	-	Regen	2d4	23	23	14	8
Ogre	Weapon Enchantment carries over	Warmace	-	-	21	15	8	7
Yeti	none	-		2d4	22	16	12	8
Gargoyle	none	-	-	2d4	15	18	14	7
Myconid	none	10% ConfusingAttack	-	2d6	14	15	12	6
Kenku	Weapon Enchantment carries over	Shortsword, Bow			16	14	16	4
Gloura	Weapon Enchantment carries over	Dagger	-	-	8	12	17	6
Drider	Weapon Enchantment carries over	Scythe, Crossbow,Longsword	-	-	15	16	15	6
Human	Weapon Enchantment carries over	Longsword	-	-	14	14	14	4
Elf	Weapon Enchantment carries over	Rapier	-	-	12	14	16	4
Drow	Weapon Enchantment carries over	Rapier	-	-	12	14	16	4
Duergar	Weapon Enchantment carries over	Greataxe	-	-	16	14	16	4
Dwarf	Weapon Enchantment carries over	Greataxe	-	-	16	14	16	4
Sahuagin	Weapon Enchantment carries over	Spear	-	-	14	12	13	5
Worg	none	Power Attack	-	2d4	17	15	15	6
Hook Horror	none	-	-	2d4	24	14	17	6
Shapechange
Race	Focus	Offensive	Defense	Dmg	STR	CON	DEX	Base AC
Fire Giant	Offense {Weapon)	Greatsword +5, Alch Silver	Fire Immunity	2d6+15	31	21	9	20
Frost Giant	Offense {Weapon)	Greataxe +5, Cold Iron, Vamp +2	Cold Immunity	1d12+13	29	21	9	18
Hill Giant	Offense {Weapon)	Greatclub +5, Alch Silver, Mass Crit, Daze on Hit		2d8+10	25	19	8	16
Maur	Offense {Weapon)	Greataxe +5, Cold Iron, Vamp +2		1d12+12	26	20	10
Werewolf Lord	Offense and Defense		10 / Silver	3d6+14	32	20	18	23
Iron Golem	Defense (Magic)	Haste	10 / Bludgeoning, Magic Immunity, Construct Traits	2d10+7	25	10	9	21
Mindflayer	Offense (Brains)	Attack +7, Kill on Hit (DC=14): Goblins, Ores, Monstrous, Reptilian	SR 34, Combat Expertise	1d8+5	16	16	14	21
Dragons	Defense (AC, Sneak)	Keen	Sneak Immunity, Elemental Immunity	2d6+12	33	21	10	26 (Mist Dragon 30)
Five-headed Hydra	Offense (Attacks)	Additonal Attacks	Regen 5	2d10+8	26	20	12	22
Skeleton	Offense and Defense	Scythe +5, Keen, Vamp +1	5/Bludgeoning, Undead Traits	2d4	18	10	18	23
Zombie	Defense (Immunities)	Strong Zombie Creep	5/Slashing, Undead Traits	1d8+1d6	18	10	16
Nightwalker	Defense (Immunities)	Vampiric Regeneration +1	10 / Silver, Undead Traits	2d6+14	38	10	14	24
Planetar	Offense (Weapon)	Greatsword +4, Alch Silver, Aligned	10/Chaotic, SR 30, Regen 2, Celestial Traits	2d6+1d4+4+10	25	10	19	19
Moon Dog	Defense (Spell Resistance, Evasion)	1d8 vs Evil, Ench +3	10/Evil, SR 34, Improved Evasion, Celestial Traits	3d6+1d8+3+7	24	16	13	19
Arboreal Elf	Offense (Ranged)	Bow +4, aligned, mighty 8	10/Lawful, Fey Traits	1d8+1d6+9+5	21	21	21	22
Marut	Offense and Defense	Aligned	10 / Chaotic, Regen 2, Construct Traits	2d6+1d8+12	35	10	13	20
Slaad, Death	Offense	Aligned, Stun on Hit, +1 AB, Slaad Eggs	10 / Lawful, Regen 3, Slaad Traits	3d6+10	21	21	23	24
Erinye	Offense (Ranged)	Bow +4, aligned, mighty 8	5 / Chaotic, Regen 1, Baatezu Traits	1d8+1d6+9+5	21	21	21	22
Horned Devil	Defense (AC)	Aligned	10 / Chaotic, Regen 3, Baatezu Traits	2d6+10	31	25	25	32
Palrethee	Offense and Defense	Greatsword +5, Alch Silver	10 / Lawful, Fire Shield 5, Tanari Traits	2d6+1d6+10+4	19	16	16	21
Hezrou	Offense and Defense	AB +3	10 / Lawful, Tanari Traits	3d6+4+5	21	29	10	18
Bebelith	Offense	Aligned, Bebilith Venom	10 I Lawful, Web Immunity	2d8+15	28	26	12	22