There is no common card that needed to be "played around" more than Ray of Command in Magic limited history, and the stories of getting 3-for-ones, 4-for-ones, or even 5- or 6-for-ones with Ray of Command were not unheard of
It may not be Tier 1, but I wouldnt be surprised to see Sapphire/Steel remain somewhat competitive
Mosswood Dreadknight If this list was based on cards that I personally was most excited about, this guy would be number one
Raw card advantage through drawing numerous cards is good, but getting the card you need is even better
Mind into Matter Mind into Matter lets you draw into permanents like creature, enchantment and planeswalker cards and plop them directly onto the battlefield
Go figure, these creatures have been for a long time, and they won't go away anytime soon