That being said, here are decks that any player with a basic understanding of how to play MTG can get into without too many complications
So lets get into this for a bit, too
The Zombies The zombie typal deck enablers, including the most popular zombie commander, Wilhelt, the Rotcleaver, are key in any functional zombie EDH deck, drawing cards with Archghoul of Thraben and Undead Augur, making tokens with Headless Rider, recursion with Relentless Dead, and draining life with wincons Diregraf Captain and Plague Belcher
Monster Movie Marathon - Spell cards reimagined as overdramatic classic monster movie posters
Agatha's Champion's fight effect is ideal to either destroy a would-be blocker or take out a small creature with relevant abilities, or dispatch a flier that the green deck can't easily block
It isn't enough to completely write this deck off, as there are plenty of very valuable cards that are worth using, but it's worth considering