If you dont need the money and the space isnt an issue, holding them for five or six years is almost always going to provide the best chance of a great return with almost no risk of losing your shirtas I said earlier, even boxes from bad sets are still fairly valuable
All modes are playable in Commander, making it a fine card at 3-mana
This deck plays like a combo-control deck, and youll be carefully managing your turns and mana to balance between keeping threats off the board, and racing to establish a Stasis soft-lock where youll be able to damage the opponent, and then hopefully bounce your Stasis on the opponents end step with Boomerang or Remove Enchantments
The classic old-school combo with Marton is Maze of Ith, and you can also slot in the modern-day version Labyrinth of Skophos
Still, I think the reasonable floor of a 3-mana 2/3 and the very high ceiling of Goblin Lord that can act as removal or reach is a pretty nice card
This is great if you need to stop a gigantic monster from killing you off, but it also allows you to get any attack triggers you might want while being able to protect your Creature