This is a ridiculous ability on a body that has upside when it gets removed (and it will). Unfortunately, it's too slow against PO which may be enough of a hurdle to prevent much testing.
On the other hand, builds are currently going through a massive metamorphosis thanks to the new Karn so a few copies may slip into lists.
This card is fantastic, but doesn't look like it slots into existing Shop decks very easily. The fact that it has an immediate, powerful impact on the two most powerful decks (other Shops and PO) makes me think that we'll see Shop pilots taking a wrench to their manabase to make it work.
Please no. Vintage Highlander would just be Blue.format.