you can run Anavar on its own, it will shut you down, as adding test to your cycle will shut you down as well without a PCT...Anavar only will shut you down, but on cycle you will not notice it, once you stop you will feel like crap for at least a month, i would add clomid at the least once you come off, but both clomid and nolva would probably be better, at least four weeks
I am on trt and and have ran Anavar along with it, at my dosage of test 100 mg a week,
still felt low T after concluding a 5 week run....but running test made it tolerable, this would be why you are advised to run test with it, and then foloow an appropriate PCT after