Search:

You seem to be forgetting the shuffle option on Ponder, and the fact that succes is at least 1 land (not exactly 1).

I have also recently thought of, and tested builds with 2 or 3 maindeck pithing needle, 4 gitaxian probe, and 0 stifle. I can say that it can certainly lead to some killer starts if you have probe +...

They can't use any of its abilities, once you gain control. You can return it to owner's (their) hand, if you wish. I guess that is slightly better than not being able to do anything..
You can...

Null Rod: Strong hate, but a bit slow and unflexible. If you cut 1 Ancient Grudge/Destructive Revelry for this, you are more vulnerable to Chalice@1.

3 Stifle: I happen to agree with this number....