uhh.. where he's constantly attking you and nirvana punches you, and then repeat? you can just mash 2d on that if theyr'e not paying attention, and you'll catch. or you can stay inside and IB for 8 stars.. and THEN do it... most of the time it's low hits, but you'll have to watch out for random overheads as well
"Tell me if I'm wrong, but can't you block the sandwich combo after its third iteration? It's not infinite by any stretch"
Yeah, it's about 14-15 hits. constitutes to about 3 repetitions (well, do combo once, loop again, then once more)