What's the minimum upgrades I should do for each heros journey event?

That's some great info YaeVizsla! I definitely agree that aiming for the minimums is a bad idea because of how it puts you so much at the mercy of the RNG gods and doesn't account for the quality of mods people have. Especially if people plan to farm up to the minimum then move on.

With that said, the minimums a good threshold to work towards. If you level up each toon individually like me, it's good to have a target to get all of them to before upgrading past that. I wouldn't want to get one character to gear 11 with every ability maxed with all the omegas and not have enough resources to get the rest past gear 7 and level 4 abilities. It's also nice to know know which characters are most important or where any further resources are best spent.

I especially like knowing which abilities are most critical to upgrade as I've been finding it hard to get everyone to 7's across the board in time for the events.