Equipment artifacts were first introduced to the game with October 2003's Mirrodin set, and they appeared throughout that block representing a creature's magical weapons and other devices

When this token is put into a graveyard, each opponent loses 1 life.) 9.5/10$0.25 Fake Your Own Death Instant Until end of turn, target creature gets +2/+0 and gains "When this creature dies, return it to the battlefield tapped under its owner's control and you create a Treasure token." (It's an artifact with ", Sacrifice this token: Add one mana of any color.") 9.5/10$0.25 Fake Your Own Death Instant Until end of turn, target creature gets +2/+0 and gains "When this creature dies, return it to the battlefield tapped under its owner's control and you create a Treasure token." (It's an artifact with ", Sacrifice this token: Add one mana of any color.") 5.8/10$0.29 Presumed Dead Instant Until end of turn, target creature gets +2/+0 and gains "When this creature dies, return it to the battlefield under its owner's control and suspect it." (A suspected creature has menace and can't block.) 5.8/10$0.29 Presumed Dead Instant Until end of turn, target creature gets +2/+0 and gains "When this creature dies, return it to the battlefield under its owner's control and suspect it." (A suspected creature has menace and can't block.) Bail Out Instant Until end of turn, target creature you control gains "When this creature dies, return it to the battlefield tapped under its owner's control

If your proxy is very official-looking and its hard to tell that its a proxy, youre getting into dangerous territory
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However, you will see this symbol on MTG Arena while sorting through your collection