The Countess has about a 1/14340 chance per-kill of dropping a Lo.
By comparison, if you cube up all runes she can drop from her rune drop (up to Ist) you will get a Lo around every 8000 kills (slightly better).
You need 16 Los to make a Zod, and 12 to make Enigma.
I make that about 80,000 runs to Zod (60,000 to Enigma). To give you an idea, Matt probably hasn't run Pindle that many times - a much faster run - and he collected the entire 1.09 grail from him.
You can be "lucky", and get a single 1/80,000 item without running 80,000 times. But there is aboslutely no way you can be "lucky" and get 200-odd 1/400 items in much less than 80,000 runs. Well, unless you seed the PRNG.
Anyone pretending Zod or even Enigma is practically possible from Countess runs is either unaware, or in denial, of statistics.