Sneak Attack lets red decks cheat massive creatures into play for a single mana, which is perfect for Commander where big haymakers are common. It supports combo kills, one-shot attacks, and graveyard recursion strategies by bypassing casting costs entirely. Decks built around Eldrazi, dragons, and other huge threats often lean on it to create explosive turns. Its power level and reserved-list mystique keep it popular among players who enjoy high-impact, swingy plays.