20 cards where the card types include “pirate” and it’s legal in Standard

Brazen Blademaster (The Lost Caverns of Ixalan #136)
Breeches, Eager Pillager (The Lost Caverns of Ixalan #137)
Breeches, the Blastmaker (Outlaws of Thunder Junction #197)
Captain Storm, Cosmium Raider (The Lost Caverns of Ixalan #227)
Enterprising Scallywag (The Lost Caverns of Ixalan #148)
Goblin Tomb Raider (The Lost Caverns of Ixalan #151)
Greedy Freebooter (The Lost Caverns of Ixalan #109)
Kitesail Larcenist (The Lost Caverns of Ixalan #61)
Malcolm, Alluring Scoundrel (The Lost Caverns of Ixalan #63)
Malcolm, the Eyes (Outlaws of Thunder Junction #219)
Oaken Siren (The Lost Caverns of Ixalan #66)
Plundering Pirate (The Lost Caverns of Ixalan #160)
Reckless Lackey (Outlaws of Thunder Junction #140)
Shipwreck Sentry (The Lost Caverns of Ixalan #75)
Spyglass Siren (The Lost Caverns of Ixalan #78)
Staunch Crewmate (The Lost Caverns of Ixalan #79)
Talas Lookout (Dominaria United #68)
Throne of the Grim Captain // The Grim Captain (The Lost Caverns of Ixalan #266)
Throne of the Grim Captain // The Grim Captain (The Lost Caverns of Ixalan #266)
Waylaying Pirates (The Lost Caverns of Ixalan #85)
Zephyr Singer (March of the Machine #86)

The arc of my blade has carved a path of light to the end of these results.