Other stuff you have to watch out for can vary, if you have 1 shadow left after a wyvern just used a tp move you're fine, but if a tp move is due, having one left can ruin you if it decides to fang rush. If you're fighting crabs you don't have to worry about double attack, if you're fighting blaggers you gotta watch out for triple attack, so if you can spare it based on recast timers, you try to get a few extra shadows up. That's the kind of stuff you have to "anticipate," it's not fucking ESP, it's paying attention to what happens, and knowing the shit that you're fighting. Ninja tanking on ichi
is not ninja tanking. You know nothing about the job (obviously) and you're not gonna win any arguments here, so just get over yourself.