mtg cards with phyrexian text lang:phyrexian · Scryfall Magic: The Gathering Search III Exile all cards from all opponents graveyards. Phyrexian (language) - MTG Wiki

This helps you put poison counters on your opponents in the early game, so you can focus on proliferating them later and dont have to worry about connecting with your fragile commander again

While the counter on its own is a one time thing, having this trigger at the beginning of combat and then the ability to get that creature back with haste for that same combat makes a very tight window for opponents to deal with your shenanigans

Morph lets us weasel our way in and out of a lot of curve problems, and the general mean power level of our deck is rarely decided by the creatures we have

Assassin's Creed (ACR) #132 Illustrated by Bastien L

Cedric Phillips, Patrick Sullivan, and Matthias Hunt do the same