One of the most powerful things you can do with Demonic Tutor is to imprint it on an Isochron Scepter, letting you copy it over and over again to grab as many cards as you need to win.
Then, discard a card from your hand
But my favorite of the lot is Junior, who can be used occasionally to smack someone for two damage, as long as you are searching your deck with things like Terramorphic Expanse, Evolving Wilds, Rampant Growth, or Dizzy Spell
Armed Rebeellion is a Special Summon from the Deck, and sends a card straight to the GY if the card did come from there
There was a time when more green decks would play this than not
In my old deck I used stuff like Infernal Tutor and Spoils of the Vault to get the pieces, then Perilous Myr and Necropede were my chumps of choice bc they turned into free removal