Phantom Armor Guardian

Though at first appearing to be an ordinary suit of armor, this imposing being begins to move, its lumbering movements slow and methodical.
Giant Phantom Armor CR 4
XP 1,200
NE Large undead
Init +4; Senses darkvision 60 ft.; Perception +8

DEFENSE

AC 18, touch 9, flat-footed 18 (+9 armor, –1 size)
hp 37 (5d8+15)
Fort +3, Ref +1, Will +4
Defensive Abilities channel resistance +4; Immune undead
traits

OFFENSE

Speed 20 ft.
Melee heavy flail +7 (2d8+7/19–20)
Space 10 ft.; Reach 10 ft.

STATISTICS

Str 20, Dex 11, Con —, Int 7, Wis 11, Cha 15
Base Atk +3; CMB +9; CMD 19
Feats Improved Initiative, Power Attack, Toughness
Skills Perception +8, Stealth +4
Languages Common (can’t speak)
SQ freeze (suit of armor)