Keyword: Investigate

When Thraben Inspector enters the battlefield, investigate. (Create a colorless Clue artifact token with “, Sacrifice this artifact: Draw a card.”)

Put target permanent on top of its owner’s library.
Investigate. (Create a colorless Clue artifact token with “, Sacrifice this artifact: Draw a card.”)

Whenever a nontoken creature you control dies, investigate. (Create a colorless Clue artifact token with “, Sacrifice this artifact: Draw a card.”)
Whenever you sacrifice a Clue, create a 1/1 white Human Soldier creature token.

At the beginning of your upkeep, investigate. (Create a colorless Clue artifact token with “, Sacrifice this artifact: Draw a card.”)
, Sacrifice three Clues: Search your library for a card and put that card into your hand. Then shuffle your library.

When Drownyard Explorers enters the battlefield, investigate. (Create a colorless Clue artifact token with “, Sacrifice this artifact: Draw a card.”)

Target creature gets -4/-0 until end of turn.
Investigate. (Create a colorless Clue artifact token with “, Sacrifice this artifact: Draw a card.”)

Target creature gets +1/+0 and gains indestructible until end of turn. (Damage and effects that say “destroy” don’t destroy it.)
Investigate. (Create a colorless Clue artifact token with “, Sacrifice this artifact: Draw a card.”)

Whenever a land enters the battlefield under your control, investigate. (Create a colorless Clue artifact token with “, Sacrifice this artifact: Draw a card.”)
Whenever you sacrifice a Clue, put a +1/+1 counter on Tireless Tracker.

Tap up to two target creatures.
Investigate. (Create a colorless Clue artifact token with “, Sacrifice this artifact: Draw a card.”)

Tap target creature. It doesn’t untap during its controller’s next untap step.
Investigate. (Create a colorless Clue artifact token with “, Sacrifice this artifact: Draw a card.”)

When you sacrifice a Clue, transform Daring Sleuth.

Flying
Whenever you investigate for the first time each turn, investigate an additional time.

Whenever Briarbridge Patrol deals damage to one or more creatures, investigate. (Create a colorless Clue artifact token with “, Sacrifice this artifact: Draw a card.”)
At the beginning of each end step, if you sacrificed three or more Clues this turn, you may put a creature card from your hand onto the battlefield.

At the beginning of your upkeep, investigate. (Create a colorless Clue artifact token with “, Sacrifice this artifact: Draw a card.”)
, Sacrifice three Clues: Search your library for a card and put that card into your hand. Then shuffle your library.

Whenever one or more creatures you control deal combat damage to a player, investigate. (Create a colorless Clue artifact token with “, Sacrifice this artifact: Draw a card.”)
, Exile a creature card from your graveyard: Investigate. You gain 2 life.

At the beginning of your upkeep, investigate. (Create a colorless Clue artifact token with “, Sacrifice this artifact: Draw a card.”)
, Sacrifice three Clues: Search your library for a card and put that card into your hand. Then shuffle your library.

Whenever you cast an instant or sorcery spell, investigate. (Create a colorless Clue artifact token with “, Sacrifice this artifact: Draw a card.”)

: Add .
, : Investigate. (Create a colorless Clue artifact token with “, Sacrifice this artifact: Draw a card.”)

At the beginning of your upkeep, investigate. (Create a colorless Clue artifact token with “, Sacrifice this artifact: Draw a card.”)
, Sacrifice three Clues: Search your library for a card and put that card into your hand. Then shuffle your library.

At the beginning of your upkeep, investigate. (Create a colorless Clue artifact token with “, Sacrifice this artifact: Draw a card.”)
, Sacrifice three Clues: Search your library for a card and put that card into your hand. Then shuffle your library.

Enchant land
When Weirding Wood enters the battlefield, investigate. (Create a colorless Clue artifact token with “, Sacrifice this artifact: Draw a card.”)
Enchanted land has “: Add two mana of any one color.”

At the beginning of your upkeep, investigate. (Create a colorless Clue artifact token with “, Sacrifice this artifact: Draw a card.”)
, Sacrifice three Clues: Search your library for a card and put that card into your hand. Then shuffle your library.

Destroy target artifact or enchantment.
Investigate. (Create a colorless Clue artifact token with “, Sacrifice this artifact: Draw a card.”)

Counter target spell.
Investigate three times. (To investigate, create a colorless Clue artifact token with “, Sacrifice this artifact: Draw a card.”)