Briarbridge Patrol

Oracle Text
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.
Card Rulings
4/8/2016 Briarbridge Patrol¡¯s first ability will only trigger once per combat damage step, regardless of how many creatures it deals damage to.
4/8/2016 Briarbridge Patrol¡¯s second ability looks at the entire turn, even if Briarbridge Patrol wasn¡¯t on the battlefield for some of the turn. It will see Clues sacrificed for any reason, not just Clues sacrificed to their own ability.
4/8/2016 The token is named Clue and has the artifact subtype Clue. Clue isn¡¯t a creature type.
4/8/2016 The tokens are normal artifacts. For example, they can be sacrificed to cast Angelic Purge or targeted by Root Out.
4/8/2016 If you sacrifice a Clue for another card¡¯s cost or effect, such as that of Angelic Purge or Tamiyo¡¯s Journal, you can¡¯t also pay and sacrifice it to draw a card.
Totally combos with Tamiyo's Journal.
I like it.
Let me cheat in this Ulamog from my deck. Sure.
edit: linked card