Card advantage can also refer to removing your opponent's access to cards
Its hard to imagine a scenario where youd feel okay discarding three precious cards, so even if you arent brought down to an empty hand, Delinquent can be devastating if it makes you discard vital energies, Pokemon, and Trainers
Staff of the Storyteller Staff of the Storyteller essentially gives you an extra card every turn if youre making tokens at roughly that pace or higher
More than those two, though, Id grab a copy of Historians Boon while its cheaper
Despite its Random Spark attack not being the best competitively, its adorable artwork by illustrator kodama (whos worked on over 100 cards now) and its obvious exclusivity will likely drive the price up as time goes on
This card's artwork is also ripe with plenty of space for swirl patterns, which are whirlpool-like glimmering patterns that can appear on holographic cards from this era