Other Pirates you control get +1/+1.

At the beginning of your end step, gain control of target nonland permanent controlled by a player who was dealt combat damage by three or more Pirates this turn.

When Admiral Brass, Unsinkable enters the battlefield, mill four cards.

At the beginning of combat on your turn, you may return target Pirate creature card from your graveyard to the battlefield with a finality counter on it. It has base power and toughness 4/4. It gains haste until end of turn. (If a creature with a finality counter on it would die, exile it instead.)

When Azure Fleet Admiral enters the battlefield, you become the monarch.

Azure Fleet Admiral can't be blocked by creatures the monarch controls.

Menace

Whenever one or more Pirates you control deal damage to your opponents, exile the top card of each of those opponents' libraries. You may play those cards this turn, and you may spend mana as though it were mana of any color to cast those spells.

Partner (You can have two commanders if both have partner.)

{2}{U}: Daring Saboteur can't be blocked this turn.

Whenever Daring Saboteur deals combat damage to a player, you may draw a card. If you do, discard a card.

When Departed Deckhand becomes the target of a spell, sacrifice it.

Departed Deckhand can't be blocked except by Spirits.

{3}{U}: Another target creature you control can't be blocked this turn except by Spirits.

At the beginning of your end step, if you descended this turn, create a Treasure token. (You descended if a permanent card was put into your graveyard from anywhere.)

Ghost of Ramirez DePietro can't be blocked by creatures with toughness 3 or greater.

Whenever Ghost of Ramirez DePietro deals combat damage to a player, choose up to one target card in a graveyard that was discarded or put there from a library this turn. Put that card into its owner's hand.

Partner (You can have two commanders if both have partner.)

When Ramirez DePietro, Pillager enters the battlefield, you lose 2 life and create two Treasure tokens.

Whenever one or more Pirates you control deal combat damage to a player, exile the top card of that player's library. You may cast that card for as long as it remains exiled.