C: Most of the other BGS labels arent too great
(If they're equipped to the same creature, the abilities of the equipped creature will also trigger three times.) An ability of the equipped creature that triggers when a card is put into a graveyard "from anywhere" triggers twice only if (a) a creature card was put into a graveyard from the battlefield and (b) The Masamune is still on the battlefield and attached to the creature with the relevant ability
The Shorikai section also provides the best Artifact ramp options with cards like Etherium Sculptor, the best draw options with cards like Research Thief, and the best Vehicle inclusions with sweet stuff like Imposter Mech
Bottom line, there is no right and wrong answer for what to grade as it really depends on your goal
Our goad theme fills in the gaps between our expensive dragons and further controls the board while growing our commander: Gloin, Dwarf Emissary ramps and goads when needed, Public Enemy makes one opponent increbily unhappy and potentially dead, Bothersome Quasit removes blocking from the equation, and Spectacular Showdown is an amazing finisher in the deck that doubles the damage output of the goaded board