Amateur set designer here: Thoughts on the design of Raid Bombardment? It hasn't been reprinted in a premier set since Rise of the Eldrazi, despite being reprinted in a bonus sheet. I infer that the play pattern isn't toxic but there might be some other part of the card that is, but I'd prefer to hear it from someone more experienced than I. Is there any element of the design that makes it hard to include, or is it just a case of "there's only so many slots"?

It’s the latter. Reprints really have to serve the set, and that design sits in an odd place for synergy.

Why are the "weird and wordy red enchantments" like Warp World, Sun Bird's Invocation, Form of the Dinosaur, Guild Feud and Haphazard Bombardment rare instead of Mythic? Thanks for answering our questions sir.

Cards that are complex and/or very niche oriented are put at rare rather than mythic rare which tends to get the more splashy effects.

When you say something is too strong for standard, do you mean the current standard environment or all future standards?

Goblin Bombardment is too strong for any Standard.

Is Development currently opposed to free sacrifice outlets on permanents? I don't recall seeing one in some time. Are cards like Goblin Bombardment going to remain a relic of the past?

They have a lot of potential to be dangerous.