How do you all keep managing to reinvent or recontextualize cards in a way that makes them feel like default effects while still offering something unique? As an example to better explain myself, I find it fascinating how cards like Immolation and Flowstone Infusion are basically "Shock" in Limited but just different enough to still be interesting. Cards like these are some of my favorite ones to look for every set...they manage to feel familiar and offer a shortcut to understanding them on a base level, but also still give me that giddiness of "new" and exciting cards to try.

That’s an important part of Magic design: do what we always do, but just a little bit differently.

Is Immolation (enchanted creature gets +2/-2) still in Red. If so, is there a reason we haven't seen it since 4th ed?

Red can get +N/-N as an activated ability but when it starts doing it to another creature, the effect becomes black.