The full texts of these abilities are "At the beginning of the monarch's end step, that player draws a card" and "Whenever a creature deals combat damage to the monarch, its controller becomes the monarch." (2020-11-10) If the triggered ability that causes the monarch to draw a card goes on the stack and a different player becomes the monarch before that ability resolves, the first player will still draw the card
You'd have plenty of duplicates of other Rares and ~35 total Mythics but finding those last Rares is always tricky
Clue | Illustration by John Avon A Clue token is a colorless artifact token with the Clue subtype, and an activated ability that reads: , Sacrifice this artifact: Draw a card. At any time you have priority, you can activate their ability by paying and sacrificing the Clue token
It also makes much larger tokens and gives them evasion
Spymasters Vault and the other cards in the mono-color Rare land cycle are also extremely free includes in low-color decks that might just be very relevant to your strategy
They're dull, uninspired, and offer none of the uniqueness that other legends had