When Armed with Proof enters, investigate twice. (To investigate, create a Clue token. It’s an artifact with “, Sacrifice this artifact: Draw a card.”)
Clues you control are Equipment in addition to their other types and have “Equipped creature gets +2/+0” and equip .
Clues stop being Equipment if Armed with Proof leaves the battlefield. If any of them are attached to creatures at that time, they become unattached.
02-02-2024
wotc
An Equipment without reconfigure that's also a creature can't be attached to anything. You can activate its equip ability, but it won't become attached. For example, if you control both Red Herring and Armed with Proof, Red Herring will be an Artifact Creature – Clue Equipment Fish with "Equipped creature gets +2/+0" and equip {2}, but activating its equip ability won't result in it becoming attached to the target creature.
02-02-2024
wotc
If an effect refers to a Clue, it means any Clue artifact, not just a Clue artifact token. For example, you can sacrifice Wrench to pay for Alquist Proft, Master Sleuth's activated ability.
02-02-2024
wotc
Some spells and abilities that investigate may require targets. If each target chosen is an illegal target as that spell or ability tries to resolve, it won't resolve. You won't create any Clue tokens.
02-02-2024
wotc
If you control more than one Armed with Proof, creatures equipped with Clue Equipment will get +2/+0 for each Armed with Proof you control. The equip cost is still {2}.
02-02-2024
wotc
You can't sacrifice a Clue to pay multiple costs. For example, you can't sacrifice a Clue token to activate its own ability and also to activate Alquist Proft, Master Sleuth's ability.
02-02-2024
wotc
Clue is an artifact type. Even though it appears on some cards with other permanent types, it's never a creature type, a land type, or anything but an artifact type.
02-02-2024
wotc
Some abilities trigger "whenever you sacrifice a Clue". Those abilities trigger whenever you sacrifice a Clue for any reason, not just to activate a Clue's activated ability.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.