Battle Guardian
Large natural animate (construct)
Level 17 Controller XP 1600

Initiative +8        Senses Perception +15; Darkvision
HP 163; Bloodied 81
AC 32; Fortitude 32, Reflex 26, Will 29
Immune charm, disease, fear, poison, sleep
Speed 8

Slam (standard, at-will)

Reach 2; +19 vs AC; 3d6+7 damage, and the target is immobilized (save ends).

Block Charge (immediate interrupt, when an enemy ends a charge within 8 squares of the battle guardian, at-will)

The battle guardian charges the enemy and makes a slam attack. The target is knocked prone on a hit.

Cover Retreat

An ally adjacent to a battle guardian does not provoke opportunity attacks when moving, as long as that ally remains adjacent.

Alignment Unaligned        Languages -
Str 17 (+11)      Dex 11 (+8)      Wis 14 (+10)
Con 19 (+12)      Int 7 (+6)      Cha 11 (+8)

Published in Monster Manual, page(s) 149, Dungeon Delve, page(s) 121.