Unfortunately, The Opponent can always backdash when using the NJP Unblockable setups. That's why you need to go for these options:
After hitting the opponent with Trance, Immediately summon Puggles and then choose from these options:
1. D3 then Immediately do the NJP unblockable setups Either the ( Low to Overhead ) or ( Overhead to Low )
2. If the opponent wants to backdash after the D3, you can go into B3,2,4 and it will hit them