Looks quite similar to the Bone Collector and the strategy seems to be the same. Though I wonder which is better.
Interesting, I did not read that before, but now I remember seeing the old bone collector in the speed bow list.
For a long time my speedbows had two Wings. That was fine for Silver, but in Gold and Platinum there was too much PC. With so many SoFo out there all Shields that can be easily destroyed by CC are weakened. Bone Wall (and Jade Shield...) should be stronger now. So I started to build a double Bone Wall speed bow, which should be able to survive in gold and platinum league.
Tiko and me both build in a Demon a SoFo and a Steal for PC an Hourglass und two Groboids. All standard cards for speedbows. We both choose the Otyough instead of the Elite Charger to get more CC. But there are still eight different cards, not few for Speed Bows.
The difference could be made by epinephrine and five 3|x cards in synergy with TU, the Firestorm and the FFQ which can build up a lot of damage in long matches (SoDiv).
It's funny that Tiko made the Bone Bollector for bronze and silver league und people also liked it in gold and platinum and it is the other way around for my Speed Wall.