Phyrexians are part machine, after all, and their language includes elements where native speakers are obliged to slap their specialized metallic mouth parts together for emphasis
If you cast Sheoldred early on and your opponent doesnt have an answer, it will slowly tax your opponent out of the game
10+: Add 1 "Polymerization" Spell or 1 "Fusion" Spell from your Deck to your hand
The main one is that to the untrained, not-X-ray-powered eye, a sealed pack containing a shadowless Charizard looks exactly the same as a sealed pack full of hot garbage
But thats a sorcery, and Peek is an instant, and while youll always pay the mana here, being able to make decisions at instant speed might sometimes be necessary
"Fabled Marcosia" activates upon being discarded to the GY, add "Fabled Realm's Revival" from the Deck to hand