Keep both Pegasai -- remove a Wyrm. Even with the Air Mark and Pendulums, 4 is massive overkill.
4 is massive overkill, but the idea is to get even one out, then buff the crap out of it, dive, win. Preferably you will buff a pegasus over a wyrm, but I believe the 4 should remain there to increase your odds of an early draw, not because you will be able to utilize the quanta. Same reason 2 pegasi are probably superior to 1 + blessing. In actuality, you prefer to make the pegasus the star, but wyrms are your backup plan. That being said, its probably not the most efficient PSNbow in the work, but it works quickly when it is. I will do some testing with it at some point soon.