Please pretend there's an 'instead' included at the end of Primordial Engine's card text...
Weapon of Choice5
Legendary Artifact (MR) X, T: Search your library for an Equipment card with an equip cost of X or less and attach it to target creature you control, then shuffle ~ into your library. "It does not recreate legendary weapons. It recreates legends."
...cough...
Please pretend there's an 'instead' included at the end of Primordial Engine's card text...
Weapon of Choice 5
Legendary Artifact (MR)
X, T: Search your library for an Equipment card with an equip cost of X or less and attach it to target creature you control, then shuffle ~ into your library.
"It does not recreate legendary weapons. It recreates legends."