Is a Rakshasa immune to the damage of the new Dragon’s Breath spell?

Is there a plan to have a Summoner class/archetype in 5e?

If killed by Power Word Kill, are your HP reduced to 0?

Minor illusion: “Physical interaction with the image reveals…” Revealed to all who see the interaction?

Could you have Flame Strike’s underground despite it “roaring down from the heavens”?

Is pushing/dragging a grappled creature subject to the carrying capacity rules?

Does the “Path to the Grave” feature only apply vulnerability, but keep immunity and resistance intact?