2026/04/20 Update

Added a bunch of notes on various creatures or encounters.
Added some media for reference.

_notes_/half-earth phase spider.md

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+# Half-Earth Elemental Phase Spider, CR 17
+
+**Huge Magical Beast (Elemental, Psionic Optional)**
+
+**Hit Dice:** 15d10+75 (157 hp)  
+**Initiative:** +5 (+1 Dex, +4 Improved Initiative)  
+**Speed:** 40 ft., climb 40 ft.  
+**Armor Class:** 24 (-2 size, +1 Dex, +15 natural), touch 9, flat-footed 23  
+**Base Attack/Grapple:** +15/+34  
+**Attack:** Bite +22 melee (2d8+10 plus poison)  
+**Full Attack:** Bite +22 melee (2d8+10 plus poison) and 4 claws +17 melee (1d6+5)  
+**Space/Reach:** 15 ft./15 ft.
+
+---
+
+### Special Attacks
+- **Poison (injury):** Fort DC 24, 1d6 Dex + 1d6 Con per round for 3 rounds  
+- **Pounce:** Full attack after charge  
+- **Phasing:** Can move partially out of phase to avoid attacks  
+- **Multiattack:** Bite + 4 claws  
+- **Earth Meld (Half-Earth):** Can merge partially into stone terrain, gaining +2 AC while melded
+
+---
+
+### Special Qualities
+- Darkvision 60 ft., low-light vision  
+- Evasion  
+- Climb 40 ft.  
+- Earth subtype traits (Half-Earth): DR 5/<2F>, immunity to earth-based attacks, burrow partially through earth  
+- Psionics optional (no CR change)
+
+---
+
+### Saves
+- Fort +17  
+- Ref +11  
+- Will +8
+
+---
+
+### Abilities
+- STR 26 (+8)  
+- DEX 12 (+1)  
+- CON 20 (+5)  
+- INT 2 (-4)  
+- WIS 14 (+2)  
+- CHA 6 (-2)
+
+---
+
+### Skills
+- Climb +31  
+- Hide +18  
+- Spot +15  
+- Listen +15  
+- Move Silently +18
+
+---
+
+### Feats
+- Multiattack  
+- Weapon Focus (Bite)  
+- Improved Initiative  
+- Power Attack  
+- Great Fortitude  
+- Improved Critical (Bite)
+
+---
+
+**Environment:** Mountains / rocky terrain  
+**Organization:** Solitary or small nest (2<>4)  
+**Challenge Rating:** 17  
+**Treasure:** Standard  
+**Alignment:** Always neutral