basic land cards mtg Magic The Gathering 20 Assorted Foil Premium card stock ensures durability and longevity Basic land - MTG Wiki

At least when I'm writing this, they are

When creatures deal damage based on toughness, suddenly Giant Ox becomes the most efficient titan as a 2-mana 6/6

Memory Deluge basically single-handedly covers your standard card draw, and you can keep pesky creatures at bay with Fires of Victory

Good old Sol Ring - the most played MTG mana ramp card in Commander, because it's the most played card in Commander, full stop

Its especially useful among Mox gems because counterspell cards tend to use blue manaand using a counterspell card can save you from taking a lot of spell damage from your opponent

If yes: dont bring gold-bordered cards