Most notably this is Tinker and Oath of Druids but it also applies to Natural Order, Birthing Pod and to a degree things like Aetherworks Marvel and Shelldock Isle
After all, whats more iconically wizard-y than the Faustian pact, sacrificing life force for short-term gain
In more recent years, color hosers are fewer, weaker, and more situational, and part of that is that some of these older cards simply make it so that one person cant play Magic at all, which isnt exactly fun, as pointed out by Patrick Sullivan
Even better is Belle, Strange but Specials second ability, My Favorite Part! Once youve amassed at least 10 cards in your inkwell - helped by the cards first ability - Belle, Strange but Specials lore is increased by four, allowing you to quest for a massive five lore every turn