New Monster: Stone Dwarf Statue

This monster is my first 4th edition monster creation. I made it in about 10 minutes following the guidelines in the DMG and lifting heavily from the Stone Golem in the MM.

Stone Dwarf Statue Large Natural Animate			Level 3 Solo Soldier 750 xp
Initiative: +3 HP:196; Bloodied: 98 AC: 20; Fortitude: 20; Reflex: 14; Will: 16 Immune: disease, sleep, poison Saving Throws: +5 Action Points: 2 Speed: 6; can’t shift; see also Rampage			Senses: Perception -2; darkvision
Axe Slam (basic melee; standard; at-will)
	+10 vs. AC; 1d12+5 damage.
Double Axe Slam (standard; at-will)
	Makes two Axe Slam attacks.
Rampage (standard; recharge 5,6)
	The stone dwarf statue moves up to its speed plus 2 and can move through enemies’ spaces, provoking opportunity attacks as normal. When it enters a creature’s space (ally or enemy) the statue makes an axe slam attack against the creature. On a successful hit the statue pushes the target one square. The statue must end its rampage in an unoccupied square.
Death Burst (when bloodied and again when reduced to zero hit points)
	The stone dwarf statue explodes in a burst of jagged stone. Close burst 1; +10 vs. AC; 1d8+3 damage and the space it occupied is difficult terrain until cleared.
Alignment: unaligned		Languages: none
Str 17 (+5) Con 17 (+5)		Dex 6 (-1) Int 3 (-4)	Wis 8 (-1) Cha 3 (-4)