Focus on limited edition releases for long-term value
I can see a PSA 10 example easily earning five figures
While these numerical restrictions seem tight (new players would be forgiven for thinking that it would be better to search out Monsters with higher stats), between them the cards offer a vast search potential, and are often able to seek out the perfect card needed for almost any situation

Additionally, collector numbers for ripple foil tokens with the MH3 set code as well as the front and back side order in which tokens appear differ in Graveyard Overdrive Collector's Edition, where tokens appear as follows: 1 Goblin // Tarmogoyf token 1 Tarmogoyf // Goblin token 1 Tarmogoyf // Saproling token 1 Dragon (Broodmate Tyrant) // Treasure token 1 Zombie // Insect (Black-Green) token 1 Insect (Black-Green) // Zombie token 1 Beast (Black) // Shapeshifter (Blue) token 1 Shapeshifter (Blue) // Dragon (Broodmate Tyrant) token 1 Saproling // Emblem (Garruk, Apex Predator) token 1 Dragon (Broodmate Tyrant) // Copy token See the tokens and emblem from Graveyard Overdrive and Graveyard Overdrive Collector's Edition (tokens and emblem) in the Modern Horizons 3 Card Image Gallery
a teen is accused of driving a boat recklessly, injuring his passenger
Pretty easy to pull off in this deck, and a big threat with all the tokens this deck makes