Modern is unlike Legacy and Vintage not full of absurd combo decks which overall negates the necessity for playing Force of Negation
Teferi, Who Slows the Sunset Is this too much text
(This is by far the minority way in which combos get created, but as it does happen I felt I should point that out.) Please understand that most combos come about because the designers work hard to create cards that expand upon their basic themes allowing multiple cards to hinge around the same criteria
Endless Punishment does that best through its boxtopper commander, Valgavoth, Harrow of Souls
A S.N.O.T., by the way, can only be half untapped if it has an even number of cards
Base Set Edition Cards Release Dates If you have already found two of the important points, the discovery of the third is not that important, but it is better to do it than not to do it at all