These are alternate art, specially treated cards which offer special variants on other, standard cards in any given set
Rakdos Tree 4 Bloodtithe Harvester 4 Agatha's Soul Cauldron 4 Blackcleave Cliffs 4 Blightstep Pathway 4 Blood Crypt 4 Fable of the Mirror-Breaker 4 Fatal Push 4 Tree of Perdition 4 Voldaren Epicure 4 Voldaren Thrillseeker 4 Thoughtseize 3 Inti, Seneschal of the Sun 3 Mutavault 3 Raucous Theater 2 Swamp 2 Flamecache Gecko 1 Takenuma, Abandoned Mire 1 Mountain 1 Castle Locthwain 3 Path of Peril 3 Leyline of the Void 2 Duress 2 Laughing Jasper Flint 2 Ob Nixilis, the Adversary 2 Alpine Moon 1 Jegantha, the Wellspring Rakdos Tree shows that Sorin, Imperious Bloodlord plus Vein Ripper was not the only combo available for a black-red midrange deck
Sleep well, and may the shadows keep you. 3/5 Illustrated by Yusuke Mogi Standard Legal Alchemy Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
There are also six cards that have been completely removed, either because of them using ante (a mechanic that has long been abandoned due to its close proximity to gambling) or because of offensive content
Knights of San d'Oria (Ranger-Captain of Eos) Ranger-Captain of Eos sees enough Modern and Legacy play to warrant picking this one up