Just tryed to test this as nerd1 said, Osiris eated my Eagle's eye, but I got him to deck out
)
Further explanation:
You cannot usually add status when something is protected (quintessence or protect artifact) due to the buff effect is "card cannot be targeted"; but see how using "animate weapon" works for morning glory, Fire buckler, Thorn capparace, Procastrination works on quintessenced creatures.
Also, you can play a weapon over a protected one, this way we keep "consistency" whithin features.
Added poll