However, it becomes excellent when paired with Mufasa, Betrayed Leaders ability, The Sun Will Set, which means that when this card is banished players can reveal the top of their deck and play it for free if its a character
The Deck (the original deck which personified the card-advantage strategy) packed the Tome as a way to gain card advantage steadily throughout the game
By making them both uncommons that green-black was happy to play, the cost to put them in your deck was low enough that you'd take them both, and then it's time to Ragnarok and roll
This is largely down to how hard it is to deal with early walkers
It doesnt make a huge difference in 2-color decks, but 3+ color decks love this for its low cost and easy fixing
The Draft format is very solid, with lots of viable strategies and a weird incentive to draft mono-color decks, which isnt something that happens every day