Magic: The Gathering's March of the Machine reveals a powerful new version of Heliod

sportskeeda.com:

Heliod, a God of Theros, falls in Magic: The Gathering’s next expansion. March of the Machine features the interplanar war MTG has been setting up across the last several sets, and not everyone will get out of it in one piece. During the preview we received over the weekend, we learned that this card transformed, but the alternate form was a mystery.

However, there was a very interesting tease that would explain things. In the lore text of the card, Ajani said that if you Compleat the people, you Compleat the God. That means Heliod falls and becomes a Phyrexian God.

He’s no longer indestructible, either. That doesn’t mean he’s without power, though. What can this fascinating new card do?

The normal version of this card is interesting in a few ways. He starts off as a creature and doesn’t require you to have devotion to him to transform. He’s a bit more expensive at four mana and is no longer indestructible as his original Magic: The Gathering form was.

However, when you put this Magic: The Gathering card into play, you can return an enchantment from your graveyard - that isn’t a God - and put it into your hand. That’s solid retrieval based on the cost of that mana. He can also transform, requiring three colorless and one blue or Phyrexian Mana. It can only be done as sorcery, so you can’t transform him in response to removal and hope for the best.

Thus, this corrupted form was born. Now a Phyrexian God, his abilities are far more dangerous. He’s a simpler card with no activated abilities, but what he does is dangerous enough.

Heliod, the Warped Eclipse

The fall of Heliod turned out to be a major gain for a wealth of decks. The fact that you can cast spells as though they had flash gives Standard a way to use the power of Leyl