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With all of the "place an enhancement on a character, it activates when that character enters battle" abilities the player that placed the enhancement carries it out even if an opponent controls the character it is on when that happens.
With all of the "place an enhancement on a character, it activates when that character enters battle" abilities the player that placed the enhancement carries it out even if an opponent controls the character it is on when that happens. So this won't work like you want it to with those cards. Sent to Serve is worded slightly differently so it might work, but I'm not sure.