I still don't get why you are able to put down several perks and call them the best. What I mention is that they should be swapped out based on the situation that requires it.

Remember the post a few days ago about Razzmatas being good for the tower? The only weapon we have access to that extends break turns somehow becomes a good weapon in the right situation.

While you write about how great Ultima weapon is, I agree ultima weapon is a great weapon, but it doesn't replace masamune, because they are fundamentally different weapons for different situations! Masamune for example, might surprise you with it's damage, such as spamming a damage card against an unbroken enemy locked down with stun + slow. Lucky procs of reunion will allow you to spam a few times more without tap attacks to regenerate orbs, while attuned chain gives you more damage than Ultima weapon can. My whole point is that you should be swapping out these 2 weapons based on situation, while none is better than the other.

Some other perks that you may find surprising good in certain situations are steelguard(galatyn) and kill and draw(blood anchor).

No, ult charge is not better than element 3rd hit, which isn't better than reunion, which also isn't better than prism draw. They are all equally situational and niche. As a player, you pick the right combination before entering a battle.