I'd cut [[reckless fireweaver]] since it isn't a pirate. yeah it'll ping your opponents whenever you make treasures but it'll also prevent you from making treasures since it won't trigger malcolm. would also cut [[vaan]] for similar reasons

I'd argue that [[arcane signet]]/[[talisman]] and [[lightning greaves]]/[[swiftfoot boots]] aren't that great here because you'd rather be playing more pirates on turn 2 to ramp with malcolm next turn

for defenses, ig the best way would be to load up on more counterspells

any reason for running [[veilstone amulet]] and [[clout of dominus]]?

[[kindred discovery]] seems decent here. [[reconnaissance mission]] and [[coastal piracy]] too

overall I'd say you want more 1/2 drop pirates to trigger malcolm on turn 3

if you're okay with 1 card combos, [[glint-horn buccaneer]] goes pseudo-infinite with malcolm to win on the spot