Yu-Gi-Oh! Master Duel is a free-to-play card game specially designed for mobile phones. The game features more than 10,000 cards; you have to collect them to build your deck. You can watch the game tutorial at the start before playing it. Compete against other players all around the world and earn rewards. You can download it anytime from the Google play store or Apple app store.
The top deck in the S+ tier is Synchro of Unity; it is the best. Link Generation is a deck ranked in S tier, and Power of the Dragon ranks in A tier.
S+ Tier
Synchro of Unity
S Tier
Link Generation
A Tier
Power of the Dragon