Some Attractions represent minigames and even offer prizes
Youre selecting synergistic cards that are in many cases among the best of those effects (if not the best), and youre moving away from theme and closer to just making your deck the best it can be
I may also add that Courser with Connections is messed up crazy bonkers like wow
Lastly, there are some assassin cards that tie into specific non-assassin themes such as Lys Alana Scarblade in elves, Goblin Assassin in goblins, Silent Assassin and Rathi Assassin in mercenaries, Unliving Psychopath in zombies or equipment decks, or Hunter of Eyeblights and Massacre Girl, Known Killer in -1/-1 counter decks
Counterspell carries the value of the Internet sensation drop, and between Spongebob and Gary, you should make your money back for the Legends drop
If you can get Corrupted going, its easy to recover the lost life and climb to even higher life totals, effectively closing your opponent out of the game