If you get Shaun, Father of Synths on the battlefield and protect him, he can produce copies of your other legendary creatures and open up a whole bunch of shenanigans for you
Sometimes a friend will have a card that you didnt even realise existed, and suddenly youre searching for a card that might be older than you, just to try and improve your deck
Here's an analogy: I'm the kind of person who, while playing a Final Fantasy game, almost always chooses the "FIGHT" option
If you can get Tekuthal, Inquiry Domnius on the battlefield, you can also use that cards ability to proliferate twice any time another nontoken artifact you control enters
And in both cases, the best way to get results is to not be too squeamish about what youre willing to consider resources. Sacrifice synergy decks have an incredibly well-rounded threat profile, terrifying explosiveness and a deep bag of unique tricks that make them a thrill to play