Enchant land
Whenever enchanted land is tapped for mana, its controller adds an additional .

: Add one mana of any color in your commander's color identity.

, Sacrifice this creature: Counter target spell.

Put two +1/+1 counters on target creature you control. Other creatures you control get +1/+1 until end of turn.

Haste
This creature attacks each combat if able.

Vigilance
Whenever you draw your second card each turn, put a +1/+1 counter on this creature.
When this creature dies, create a Clue token. (It's an artifact with ", Sacrifice this token: Draw a card.")

At the beginning of your upkeep, you gain X life, where X is the number of cards in your hand minus 4.

: Target creature you control gains haste until end of turn. (It can attack and this turn.)

When this creature enters, manifest dread. (Look at the top two cards of your library. Put one onto the battlefield face down as a 2/2 creature and the other into your graveyard. Turn it face up any time for its mana cost if it's a creature card.)

Whenever this creature or another Pirate you control enters, tap up to one target creature. That creature doesn't untap during its controller's untap step for as long as you control this creature.

Flying
Eerie — Whenever an enchantment you control enters and whenever you fully unlock a Room, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

When this creature enters, venture into the dungeon. (Enter the first room or advance to the next room.)
Displacement — : Return this creature to its owner's hand.

Devoid (This card has no color.)
When you cast this spell and whenever this creature attacks, put a +1/+1 counter on each colorless creature you control.
Trample

Haunt (When this creature dies, exile it haunting target creature.)
When this creature enters or the creature it haunts dies, destroy target creature that was dealt damage this turn.

Whenever this creature enters or attacks, you lose 1 life and create a Junk token. (It's an artifact with ", Sacrifice this token: Exile the top card of your library. You may play that card this turn. Activate only as a sorcery.")
Whenever a token you control leaves the battlefield, put a +1/+1 counter on this creature.

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
Whenever this creature enters or attacks, you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

, , Sacrifice this artifact: Draw three cards, then put two cards from your hand on top of your library in any order.

Reach
When this creature enters, you may sacrifice another creature. When you do, destroy target nonland permanent.
When this creature dies, you may gain 1 life for each creature card in your graveyard. If you do, exile this card from your graveyard.

(: Add .)

Whenever a Sliver you control attacks, defending player loses 1 life.