(Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.) Whenever an opponent draws their second card each turn, you may return this card from your graveyard to your hand
(They create a Clue token.) II/IV: Create a 2/2 black Alien Angel artifact creature token with first strike, vigilance, and "Whenever an opponent casts a creature spell, this permanent isn't a creature until end of turn." See more Add To Wishlist Restock Notice Gatherer & Rulings (opens in new tab) NM EX VG G 8 available @ $0.49 Add to Cart 1 2 3 4 5 6 7 8 $0.39 Out of stock
Most optimal are Watery Grave and Darkslick Shores, but Underground River is solid as well, and once Murders at Karlov Manor is released, the Dimir surveil land is a shoo-in
It also can continue copying creatures, gaining their power, toughness, and abilities every turn
Chandra remains an honorable mention because of its drawback of only caring about red cards