>>15638870Technically it has a 75% chance of lowering the stat at least once. 50% for 1 stage, 25% for 2 stages. And a 95% miss rate (the second hit is guaranteed if the first hits) is hardly a risk. Crush claw is just too redundant with PU-Punch. Return is better for a solid attacking move.
Sucker punch is a better move to use than crunch, and using both is too redundant. The activation percentages on crunch's secondary are too low to make it worth using anyway.
32% chance of lowering def one stage
4% chance of lowering def two stages.
The only move I could see replacing return is body slam, with that nice STAB and a 51% chance of paralysis. Too bad its a FR/LG move tutor only move.