Creatures (4) Lands (20) Spells (36) This was the first successful tournament deck to use Necropotence as a tutor. If he had two Lotus Petals, it wasnt unthinkable for him to Dark Ritual out a Necropotence on turn one, Necro for 16-19 (depending on his hand, he might want to save enough life to Vampiric Tutor plus drawing one more card)
While they always enter tapped, being fetchable makes them easy to include in slower or synergy-driven decks
Goblin Electromancer has long been a staple of Izzet spells-matter decks, as its cost reduction ability for instants and sorceries is crucial for decks looking to get ample value out of casting their spells
Again, given the once-per-turn limit on your payoff triggers, the real prizes will be permanents which would already be borderline playable, but happen to be worded in a way which makes crime effortless
Stinging Study is the same, filling your hand more for having a more expensive Commander