Karn (Character) by Anthony S
(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.) Watermark: Dimir Illustrated by Ryan Yee Standard Not Legal Alchemy Not Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
Bad Deal
Along with giving every single creature card in your hand ninjutsu, which is truly absurd, they also read, Whenever you activate a ninjutsu ability, look at the top three cards of your library
In the old days, the baseline for mana rocks was to actually produce mana the turn they came into play, like Mana Vault, Mana Crypt, the Moxen, and Grim Monolith
The same is true for the overpriced NightmareNightmare, which never quite seems to be able to swing in for the tens of damage that it promises