Usually, card stock is initially printed with the back design on the correct, non-foil side
There's some upside here if you end up pitching the card you just tutored, though as with Gamble, the best bet is to search for a card that works just as well from the graveyard as it does in your hand
Repeatable copy effects, like Gogo, Master of Mimicry are a great example of this
While thats brave, it also means that Marton is going to die a lot, so its worth including a fair number of ways to protect Marton from certain death
If a triggered ability granted by a lieutenant ability triggers, and in response to that trigger you lose control of your commander (causing the lieutenant to lose that ability), that triggered ability will still resolve
Heavily played cards, cards with edge wear, creases, or surface scratches, can still have value, especially for rarer or vintage pieces