Charm Lover Salubra

you may choose an opponent to gain control of
An artifact you control with mana value 4 or
greater rather than pay this spells mana value.

{u}: each player chooses an artifact they control, and
chooses another target player to gain control of it.
If a player chooses you, they draw a card.

{r/g}: each artifact you control becomes a copy of target
artifact.