Obviously your record suggests that the deck is doing well as constructed, but there are some interesting aggro elements in your deck that I wouldn't have expected. Pyromancer and skulker seem odd and I wonder how they do for you in practice. Pyromancer is ok at helping stave off a token rush from your opponent, though your best card for that is anger of the gods or planar cleansing which will wipe your own pyromancer + tokens as well. As a closer, a post-wipe pyromancer seems OK but pretty slow. Similar problem with the skulker, though at least that leaves behind some tokens after you wipe a board.

If I was to test some modifications, it would probably be dropping the pyromancer, skulker, and cloudshift (i don't see a lot of targets for that here and it's a poor way to save your skulker as it resets the counters without triggering the death ability). I'd add in some shocks and replace the creatures with some late game pressure that wins faster. Maybe charmbreaker devils, which i personally love in control decks in this format because it can often swing for 12 the turn after you cast it.