Ghyrson is quite efficient and unique, and synergizes well with tons of cards that are probably already in your Cube
Being an instant is what tips this card into being pretty nice
As part of their explanation, Bandai mentions that any card from a forbidden block group can return to legal status should said card be reprinted in a newer set with a new block number
Last Chance + Warriors Oath Last Chance and Warrior's Oath are best in combo-centric decks that can win on their extra turn or decks packing Stifle and Sundial of the Infinite
They have fewer hoops to jump, they fit into the Attack, yarrr! theme that pirates have by keeping our boys comin', and some pirates have very good enter-the-battlefield effects that Brass lets us reuse
Authority of the Consuls may only work for opposing creatures, but it prevents haste creatures from attacking right away, or commanders like Krenko, Mob Boss from getting suited up with Swiftfoot Boots for an immediate activation