Having all your nonland cards be creatures isn't the greatest plan, but if you're into weird decks and you're in green and black, I can see this being a fun, janky, casual project and maybe a good deck for players just starting to learn
Theres plenty of value here, especially with that cheap spell-copy ability, but Id rather put that ability to use in the 99 of a commander like Niv-Mizzet, Parun or Narset, Enlightened Exile
2: Create a 1/1 blue Ninja creature token with "This token can't be blocked." 7: You get an emblem with "Whenever a creature you control deals combat damage to a player, search your library for a blue or black creature card, put it onto the battlefield, then shuffle." +1: Draw a card
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As a result, they can be removed prior to giving you any value