5 xp says he does.![]()
Challenge Rating and Level Adjustment.
The Transient Golem itself only has its Infusion attack, so I'd guesstimate its a CR8 or so, just for the inconvenience.
The template's blood drain and immunities should be good for a +1 CR and a +2 or +3 LA.
Oh, and the Transient Golem has an "x" for Advancement. I'm tempted to not give it any advancement ("—"), but it could go up to double HD I suppose - 14-26 HD (Medium)?
I'll agree with "-" for Advancement, CR +1, and do not want a level adjustment. These things, like "captured ones", shouldn't be playable characters.
The first sample looks good.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.