Control decks prioritize stopping an opponent's game plan before establishing their own win condition. They typically use removal, counterspells, board wipes, and card advantage to survive the early and middle game, then take over once the opponent runs short on threats.
Teferi, Hero of Dominaria provides both card advantage and interaction, while Memory Deluge helps control decks keep finding the right answer. Once the game is stabilized, even a single resilient threat, such as Dream Trawler, can be enough to finish things.