Yes! All new players are given 70 individual cards (140 cards in total) that make up the Welcome Set for free. These are prebuilt, editable decks that give players an idea of how the six gods differ from each other.
Players are also given an allotment of Core cards on top of this to start off with which can be used to edit decks. But don’t let these contain your play-style! There are far more ways to play than these, and you can unlock packs and cards just by playing the game. Leveling up by winning (or losing) Ranked games will unlock card packs, allowing you to customise and expand your decks.
Core cards earned in-game aren’t NFTs, but when the Forge is active you can fuse cards together to increase their quality, minting them to Immutable X. Once cards are on the network, you can then trade them for ETH on Immutable X in order to gain the cards you are seeking to complete your deck.