I mean, I could trivially get him to an arbitrarily high CL (seriously, getting to a CL of 1 million would take probably about 5 minutes and it would last until dispelled... that is, forever), plus with Heroics + DCFS he has as many feats (and with Improved Spell Capacity, spell slots and spell levels) as he wants. So I'm not sure what to do with that...
EDIT: did the math wrong, it would take 12 rounds to get to a CL of 1e6.
- Simple. Retrain ninth level and take the Landlord feat. Landlord gives you 1 gold for every 1 gold you put towards the construction of a base of operations, with no ceiling. Give the feat a million gold, and it gives you an additional million, but only for the purposes of constructing a base. So what do to you with this? Buy the Prime Material Plane. I'm serious.
- Though alternatively you could construct an army of Adamantine Golems, or use your insane magical prowess to create a new element that has the hardness of Adamantine and the suppleness of Mithril, then build a few (hundred) golems from that material. Oh, did I mention it's naturally invisible?
Nothing Golems, anyone?
- Let's combine the two. Construct a mobile fortress from Nothingite (Patent Pending), and then enchant it to be a golem the size of a mobile castle. Now you have a colossal golem that doubles as living space.
- Make duplicates of yourself, loyal to the original of course, and then start doing insane cooperative ritual magics to find your long lost childhood friend.
- Take a lesson from the villain of the anime series
Wakfu,
Nox, and go back in time to the point where she died, and then save her life. Since D&D's concept of Paradox is "N/A", then you could return to a new future where she lived, and you and her can be happy / rule the cosmos together.
- Using your insanely high CL, use a massive Polymorph Any Object to turn the Prime Material Plane into and endless quagmire of salt water taffy, and offer it up as a tribute to the Goddess of Cavities and Dental Misfortune.