mtg rat commander decks Marrow-Gnawer ELITE Tribal Tokens Magic EDH Custom D Gnawer gives rats Fear Marrow-Gnawer Rat Tribal Tokens Magic

This card gives you a 2/2 and a 1/1 land for just 2 mana, and mana dorks you control generate 1 more mana than they would generate normally

Power creep might have left this little guy behind, but it still steals wins in the occasional Pauper Cube game

One classic example is Supreme Verdict from Return to Ravnica, which I still think is the best board wipe ever printed

Not only does it remove enchantments and kill 1/1 creatures, but you can also use it to save one of your creatures by regenerating it

It's cheap, it produces fodder than can protect it, and it can take out problematic permanents at the cost of a single sacrifice