Here's more fun zombies, assuming they were animated in a desecrated altar
Zombie Criosphinx
20d12 + 40 profane +3 from toughness hps (163 hps), 60' fly, pounce, rake 1d6 +5 (+3 str, +2 profane), +18 attack bonus (+10 BAB, +7 str, +2 profane, -1 size), gore attack for 2d6 +9 (+7 str, +2 profane) and 2 claw attacks for 1d6 +5 (+3 str, +2 profane) and a slam attack for 1d8 +5 damage (+3 str, +2 profane), Base AC 22 (+14 natural, -1 size, -1 dex) and DR 5/slashing
So now the adept has a flying pouncer (kept under the clause that zombies keep all Ex abilites that help in combat) that can serve as a mount for 500 gps.
Or something a little less exotic
Zombie dire lion
16d12 + 36 profane +3 hps (135 hps), improved grab, pounce, rake 1d6 +6 (+4 str, +2 profane), +17 attack bonus (+8 BAB, +8 str, +2 profane, -1 size), 2 claw attacks for 1d6 +10 damage (+8 str, +2 profane), 1 bite for 1d8 +6 damage (+4 str, +2 profane), and slam attack for 1d8 +6 damage (+4 str, +2 profane), Base AC of 17(+7 natural, +1 Dex, -1 AC) and DR 5/slashing
Anadept can have a dire lion for the low low price of 400 gps.