Almost any preconstructed deck is good enough to get you started in the Magic: The Gathering trading card game. Even if you're an older player, such a deck could prove useful, especially if you want to get used to certain game expansions.
You can try your hand with the pre-made deck Teferi from the Planeswalker Deck Core 2021 addition set, usually called simply M21. Since it already has 60 cards, you don't need anything else. M21 has five planeswalker decks, all having cards of a single color.
Teferi, Timeless Voyager is the planeswalker of this deck. He is accompanied by 19 creatures, 2 Artifacts, 3 Enchantments, 8 Instants, and 2 Sorceries. All these cards are in addition to the standard 25 Lands assigned to the decks in M21. The color assigned to the Teferi deck is blue.
Teferi, Timeless Voyager Decklist: