Contents of Dark Thoughts Volume 1 by Marvin Castelle
12 reviews · 5.0 / 5
Marvin Castelle · Combo
Back Step Clan by Marvin Castelle has 4 customer reviews in this archive, averaging 5.0 out of 5. 100% are five-star and 0 are one or two stars. Reviews run from April 18, 2026 to August 11, 2026. All of them are published below in full, unedited.
4 of these reviewers gave their belt rank when they submitted the review. BJJ Fanatics asks for rank, age and years training at the point of review, so this breakdown is self-reported by the customer.
| Belt | Reviews | Average rating |
|---|---|---|
| Blue | 1 | 5.0 |
| Purple | 1 | 5.0 |
| Brown | 1 | 5.0 |
| Black | 1 | 5.0 |

Back Step Clan by Marvin Castelle is currently listed on the BJJ Fanatics storefront at $79.00 USD. View Back Step Clan by Marvin Castelle on BJJ Fanatics
Well presented material on implementing the back step to attack open guards, leading in to leg and ankle submissions.
In-depth look at this awesome setup, like the "euro step," I have not seen that before
This is one of the best instructionals I’ve watched. The approaches are so abstract I’m catching all levels with the techniques with many asking what I did and when I explain it, they’re very intrigued. I recommend this for anyone who is looking for abstract approaches to pass, get into leg lock situations from standing, or want incredibly funky ways to attack the upper body if their opponent or partners wants to play guard.
Muy bueno.
12 reviews · 5.0 / 5
3 reviews · 5.0 / 5
Every number on this page is computed from the 4 reviews above at build time, out of 87,673 in the full archive. See the methodology for how the corpus is collected and what is excluded.