Sacrifice it for that sweet sweet card drawing action
However, in a Starter Deck tournament or even in a lightly upgraded list, this card wont be very strong
However, it has the advantage that it can also allow you to convert something else, like a creature that was going to die anyway, into a Treasure
The resulting abomination was the combination of Elves, Devoted Druid Combo, Stoneblade and Urzas Saga decks, and I love it
Urza, Lord High Artificer Symmetrical effects are balanced in theory, but as anyone who has cast a Wrath of God knows, with a little bit of planning that symmetry is easy to break
Overall, this Gaston is a solid card and I think it will see play in Sapphire decks paired with one of those three inks