That's Honorable Passage in a nutshell: good for making Jackal Pup bite the hand that feeds it, not so good for stopping your opponent's Memory Jar deck
This means no characters from The Hobbit, The Silmarillion, or Amazons Rings of Power show will be featured
Worse, even in a best-case scenario for a print, the actual texturing and color vibrance is usually inferior to the Japanese version of the exact same card
Just be warned that with the ultra-budget build, we basically will lose to ourselves in some games by not finding the right colors of mana
Rosewater's post also says we can expect a "special reveal" today (Thursday, June 24) via Wizards' DailyMTG website and social channels, presumably related to the cards he's teased - though we can't be sure if the would-be Minsc and Boo cards will be among any we see previewed later today