Hard Drop Tetris Wiki:ISM's cannon
From Hard Drop Tetris Wiki
ISM's spin is an opener with a series with TSS - TSD - TST patterns by ILUSM You will need a L before S to execute the T-spin single in the first bag(J before Z when mirrored). This opener can frequently be done due to having little dependencies on piece orders.
T-spin single
Residue
First bag
Second Bag
Residue