Wincons outside of typical black combo pieces, especially the Revel in Riches and Marionette Master pieces to take advantage of those Treasures, are a bit lacking in Mari's supported creature types
There are 44 MTG cards with Ninjutsu these are the top 30 most-played
Right now, my mainstay is Syr Gwyn, Hero of Ashvale, and Im thinking shell remain with the equipment crown for the foreseeable future (the key is to not tie yourself only to playing Knights)
Okay, maybe not strictly better, since the Treefolk type can matter
So, should you play Mono-Black Treasure Discard in rotated Standard
Since it sacrifices, you get past protection like indestructible and since you didn't target, hexproof for protection won't help either