Its been a while since we got a new way to prevent damage in red, and stapling it to a triple damage effect is certainly something
One other note: I know that Riches looks a little bit like Blatant Thievery (a Commander staple), but giving your opponent the choice makes it much more similar to Evangelize (a card you've probably never seen before, for very good reason: it's horrible)
It is the cornerstone of many Historic decks, particularly the aforementioned green/white decks that use Collected Company
But thats not to say that fair Magic is beyond the reach of this archetype DOING IT THE HARD WAY Regardless of whether a sacrifice player is currently threatening one of their many infinite combos, you can rarely afford to sleep on their boardstate or combat step
While Ravensburger confirmed early on that supporting characters could not select themselves, the new, erratad version of HeiHei (on the right) helps clarify the misprinting