(3) The card texture premium rares have embossed patterns, raised ink, or unique holo foil you can feel with your fingers
Aetherworks Marvel defined its Standard format when it was used to put in play one of the best of the Eldrazi titans, Ulamog, the Ceaseless Hunger, ahead of time, effectively ending the game on the spot, but its a bit more of a roulette wheel in Commander
Lands like Celestial Colonnade and Raging Ravine are especially effective in slower strategies that want resilient win conditions built into the mana base, complementing decks that rely on the best colorless cards in MTG for flexible, non-colored impact
Similarly, if you sacrifice an artifact to activate a mana ability while casting a spell with improvise, that artifact won't be on the battlefield when you pay the spell's costs, so you won't be able to tap it for improvise