I really don't know the Yosenju matchup so I can't really help there, maybe Vanity's Emptiness.
Monarchs need the Extra Deck
Doran EDH decks normally play like Treefolk tribal, play a bunch of things that have high toughness (like Treefolk)
And you always want to play Perfect Guards. Sorry for the short response. But I'm on my phone and it's slightly uncomfortable typing a ton of paragraphs,when my laptop decides to let me log on with it I'll give better responses.