Blood moon is sided for all combo and control decks, against them we can easily win with normal, non infect damage if they are shut down with mana, we can achieve black mana from
manamorphose if we are about to kill with infect.
Pyretic is not a must-have, but it definitely helps to pump much much more
kiln fiend on board, as it is instant spell and allows us to do more pumping on him. And at last, it won me a game in first turn many times.