That's a lot of value in one card, and in a recursion deck, the sacrifice is no cost at all
When I asked Thyer why distributors aren't simply supplying more cards to meet demand, he said that they are
Demanding seven mana and five total creatures to summon via the Mechtitan Core, the payoff here had to be huge in order to be worth it
The fact that he is so useful in turning on Erebos, God of the Dead may not end up being a thing, but its certainly worth testing to be sure
In a multicolor deck, creative players can use many cards and abilities to do this, like Doubling Season to make two Smaugs
You can +1 him to force your foes to lose 2 life unless they discard a card, and in Commander that's likely to be the two life