A better starting point would be to pick up a League Battle deck or a Build & Battle Box, both of which are a bit more strategy-focused, and thus more league and tournament friendly
One Piece sealed product moves fast around a major set, and popular boxes frequently sell out, so it's worth checking the collection regularly and setting up for launch day
The Shining Pokmon are the obvious draw, with Shining Charizard, Shining Mewtwo, Shining Tyranitar, Shining Celebi, and others giving the set one of the strongest chase-card lineups of the entire vintage era
The Gaming Mat Company use beautiful simple designs allowing you to lay your cards out in an organised way leaving you to focus on your battles and play at your best
I ran him in an enchantress deck where you targeted him with Auras, draw cards with Enchantress effect, and then kept on