Thassas Oracle costs two Blue and allows its controller to look at the top X cards of their library where X is their Devotion to Blue (in other words, the number of Blue pips in the mana cost of cards they control)
Good options include burning, shredding and complex ritual sacrifice
This may indicate it might come later at different stores in different countries at some point too
Back in the first few years of the game, matches could take a long time to complete, especially since you needed to knock out six Pokemon to win
If youve ever been curious to play, fancied trying something new, got a bunch of cards you have locked away, or have been an on-and-off collector like myself with hundreds of cards spare, then grab a friend, look up the rules and just play, and maybe take part in an event or two