^Hi Vangelios,
Good suggestions, but you forget that Blessed Pegasi deck with Mark of Air is more CC resistant than the Wyrm based decks of yours. Dragonflies (1 hp), Wyrms (3 hp) and Azure Dragons (6 hp) are easier to be killed than Blessed Pegasi (6 hp) and Golden Dragons (10 hp). If you lose your Dragonflies you will probably lose the game, that's why pillars are often more reliable than quanta generating creatures.
About Adrenafrogs, these are also easily CCed and many shields can block them hard. On the other hand, Blessed Pegasi can beat most shields without great problem, except Dusk, Turtle, Bonewall etc.
In the end, every deck has its own advantages and disadvantages. No buff for Pegasus is really needed.