#mod squee

So first of all Yawgmoth did not create Old Phyrexia. From New Phyrexia we know that the DNA for Phyrexia is stored and transmitted by the Glistening Oil. This Oil was already on Phyrexia when Yawgmoth was given the plane by Dyfed. I believe that Old Phyrexia developed because of the use of oil Now Dyfed claimed that Phyrexia was created by a dead planeswalker that preferred the form of a dragon. Now Ugin is a spirit dragon planeswalker. It is no great leap to believe that he was once a physical dragon planeswalker. It was Ugin that originally built Phyrexia. Ugin would go on to imprison the Eldrazi as their ability to purge and remake planes was the biggest threat to his Phyrexian multiverse. This is where Bolas comes in. Bolas want to be unchallenged in the Multiverse. Phyrexia is one of the greatest threats to him. So he goes after the source, killing Ugin on Tarkir. He then goes on to create an army perfected to defeat Phyrexia. As warriors of neither flesh nor artifice they stand immune to the  corruption of Phyrexia. The Eternals are the ideal weapon to fight Phyrexia. He is ready when New Phyrexia emerges and makes sure to send one of his agents to spy on them. Building off of this  Bolas released the Eldrazi to make another threat for Phyrexia and Ugin to deal with. By doing this he indirectly was responsible for the Gatewatch. Then to help the Gatewatch grow he crushes but not kills them on Amonkhet. He also tells them exactly how they need to improve as he does it. Bolas is doing everything he can to prepare the multiverse for the threat of New Phyrexia.