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Combo Piece Count and Rating Commander Spellbook rates each combo with a tag: E (Exhibition), C (Core), O (Optimal), P (Powerful), S (Strong), R (Reserved/broken)
There's also combo potential with cards like Triskelion: if you can first get a +1/+1 counter on Daggertooth then you can ping it with Trisk, proliferate both the Daggertooth and Trisk to add another +1/+1 counter to each, then repeat infinite times for infinite proliferate and an infinitely large Dino
Bonus points for being an option for the command slot, though I wouldnt particularly recommend trying to run mono-black infect (trust me, I tried)
Theoretically, you could make a really good deck early on and win against the League, which is why the game doesnt let you do that and artificially gates your progress