I like taking care of multiple problems with one card
At the time, land theme seemed to just mean ramp with a light graveyard theme enabled by a generic Jund value package
If you can give your opponent tokens and then kill them with something like Pestilence, you could easily grow your Rat army
Look into details, youll usually find card printings that are blurry, especially around the edges of the letters or the ones on the backside of the card
Ob Nixilis doesn't just loop with All Will Be One
But these rules also permit a certain degree of consistency in game planning and play, such that decks are not just a completely random agglomeration of powerful cards, but can actually constitute strategies. The 60 card minimum and 4 card maximum was a brilliant balancing of these elements, replayability and consistency, that has helped Magic endure for decades