Honestly it sounds cool but at the same time would make the same 5 strikes more tedious than they alrdy are. If their were more maybe it would be a cooler idea.
But for the same of adding something with substance
For the phogoth strike. It would be a little more nerve wrecking if his chains that he broke out of stay dangling from his wrists and he used them as a weapon. Every time people ran by him he sleds them on the ground or even swings them in the air for when Guardians try to go up over him on the platforms
Yeeeees, that's an awesome idea. I didn't even think about his chains being used as weapons.
I fully understand how tedious they'd become. Nightfall can already be a nightmare at times, and for Sepiks, if Void Burn is on and the energy drain uses void damage, it's probably game over. These would just be adding to that level of difficulty.