Investment potential : Rare cards in near-mint condition or professionally graded can significantly increase in value over time, making them attractive not only for play but also as an investment
Boggart Harbinger is the strongest enabler to this infinite combo
Rise of the Eldrazi Brood Birthing Kozilek's Predator Skittering Invasion Rise of the Eldrazi was the first set to use a creature token as a core mechanical component
Shagrat, Loot Bearer Shagrat, Loot Bearer could make for a good Voltron commander that can easily equip expensive artifacts to itself
Turn Volrath into the joiner, tap for 7 green mana, spend 1 mana to turn Volrath into Pili, then spend another 2 mana to untap Volrath and generate 1 mana of any color, generating infinite colored mana
The case is much the same for the other MTG X Spongebob Secret Lairs, but the drops are a bit less severe