3HD so: Class HP=10 +5+5=20+6(con) +3(toughness)=29
Feat: Toughness
Feat: Dodge+mobility
AC=12 (phantom base) + 2 (armor bonus from advancement) + 4 Dex +1 (dodge) +1 Nat AC =20, 24 with mage armor, 28 with mage armor and shield.
Skills
Hatred phantom, always gets skill ranks in Acrobatics and perception
Perception=3+1+3=7
Acrobatics=3+1+3=7
6 skill ranks
Fly=3+4+3+4=14
Stealth=2+3+4=9
Bluff=3+3+4=10