Anikthea can bring back enchantments as 3/3 zombies, while Commodore Guff is a planeswalker designed to play nice with other MTG planeswalkers, suggesting that he's probably heading up a superfriends precon
There are plenty of ways to double up on your instant and sorcery spellsmost notably Zada, Hedron Grinder, a commander who makes dozens of unplayable cards suddenly very strong
An argument could be made that Library deserves spot #2 or #3, but nobody who has played Oldschool and faced a first turn library would place it any lower on the list than #3.
Activate only if you've paid or lost four or more this turn
We all know that there are cards that can be oppressive if you build around themin truth, probably too many to ban and still have a reasonable coherent list
Early on, it acts as a Force Spike, but later it might as well be labeled as a hard counter