The oracle is a very short lived unit in most sc2 games, it would be nice to have an effect that upon death they will contaminate the area with a lot of radiactive fallout which would give a small damaging and slowing effect for both friendly and enemy units until it very slowly evaporates.
This would also encourage players to keep their oracles away from their own base and for enemy players not to shoot down oracles too quickly over their mineral lines!
Not sure how forcing a player to choose between watching their mineral line be slowly disintegrated or rapidly irradiated to death is in any way a good dynamic.
So you use a Widow Mine in your mineral line to defend Oracle harass… it successfully shoots it down - congratulations, your entire mineral line is irradiated. That’s kind of… ridiculous, especially if it’s rushed.
This would make Skytoss virtually unstoppable because you could build 6 oracles and suicide them into bases at will forcing all mining time to be lost. This would probably also turn PVP into a Kamikaze fest and essentially force Phoenix to be built just to hunt down and stop the oracle suicide bombers from stopping your ability to mine resources.