u/Cairrngorm

I'm not gonna get into many details but I'm gonna leave this video for anyone who wants to get into the specifics.

First, what is parent looping? It basically means to indefinitely train a family tree. The real finality is to collect as many Skill Sparks (the white ones) as possible to build your perfect inheritances.

Is it hard? No. In fact it's easier than ever. You can do it while sleeping.

So how does it work? Run an indie trainer, set a deck that contains skills you would love to inherit, set a racing agenda that your future loopers can run, and wait 50 minutes.

The results will probably be 1* Guts and 2* Mile. Blue and Pink sparks do not matter yet, we are trying to collect as many of our desired White Sparks as possible.

In the event that you get a single of your desired sparks, that veteran becomes the parent, and move on to the next member of the loop. Run the same deck, same agenda, and wait 50 minutes.

If the veteran gets another of your desired White sparks, now you have two parents with sparks you want. Run both as parents onto your next looper, get desired sparks, rinse and repeat.

The idea is that every loop contains more and more of your desired White sparks in the lineage. The increase is usually one at the time. Consider a successful loop when the trainee gets the crucial skills from both parents.

When you're satisfied with the amount of White sparks, it's finally time to build grandparents for your Ace.

The deck might change depending on your desired Blue sparks, for example, 3-4 Stamina cards for Stamina sparks.

The race agenda will change too, the grandparents must run the same races that your future parent can run.

Once two grandparents are done, you can use both of them to train your parents. Parents are typically selected according to the unique skills you want to inherit onto your Ace.

And that's it. Parent looping saved my CM17, and it could save your CM18. Making your own parents will free you from depending on Borrow Slots for Ace building.