mtg op black cards Commander on a Budget: 10 Under $20 – Flipside Gaming DOMINARIA - The Black Cards

This is because Garth can be tapped in order to allow its controller to cast a copy of one of six spells: Disenchant, Braingeyser, Terror, Shivan Dragon, Regrowth, and even the famed Black Lotus

Both halves matter against a deck like Dimir, but the fact that one half will matter against most decks means this is likely maindeckable

You also get some information early on about what kind of deck your opponent is playing with Merfolk Spys triggered ability

You might also want to include as many orcs and goblins as you can for sacrifice fodder

Flying, first strike, trample, lifelink, and haste for just give mana on any Spider you play is potentially game-winning, especially now the Spider-Man set has printed so many new tools for the creature type