One honest caution on vintage and graded cards: they can reach far higher prices, but with counterfeits rising, they demand serious authentication know-how, so they suit experienced sellers more than first-timers
There is only one card I could find that by itself does it: But it costs around $10
Hidden card locations To find the cards, your deck leader has to have the ability to find cards (Hidden Ability) and you need to have completed both sides of the story
Relentless Rats Relentless Rats is more expensive than Rat Colony, but giving your rats extra toughness is very relevant, especially when you try to compete with bigger creatures that your opponent might have
If you have two commanders, the ability adds one mana of any color in their combined color identities
Machine Effect UR Ultra Rare Privacy Settings To use Yu-Gi-Oh