Basically any card that says when you perform your deck's dedicated action, draw a card is solid since it adds card advantage in addition to whatever you were doing
Cons include a lack of availability outside Japan, the language barrier for tournament play, and lower liquidity in some markets
The few formats in which it sees play showcase why Bolt will never see printing in standard, because of its ruthless efficiency married to Swiss Army knife-like versatility
If the Diamond and Pearl games are so popular, it's partly because a lot of fans entered the Pokmon universe when these games were released, and thus also the arrival of the LV.X cards
At the beginning of your upkeep, mill two cards
M = Total number of Mythics of that set already in your collection P = Total number of reward packs of that set already in your collection N = Number of "new" Mythics you pull from a draft on average (Higher earlier, lesser later, but an average across the set is fine.) W = Average number of reward packs from doing the draft