Eternal Pact with Diabolos

Eternal Pact with Diabolos came out in August 2025; we leave the first weeks out of this story, because early prices are set before real supply exists. Over the past twelve months it moved −80.3%, trading between $0.88 and $4.47. The current price is near the bottom of that range. Listings currently start at $0.87; over the last 30 days the market price averaged $0.88.

"Diabolos? Her pact is maddening, as much as loving and not being loved back. " –Professor Morgana

[Extension Rule]

You can start the game with this card in your extension rule area if your starting ruler has "Ezold", "Nero", or "Valentio" in its name, and you have seven cards with "Diabolos" in their name in your deck, exactly three among them having the warden type, and you don't have cards with attributes other than darkness or the attributes of your starting ruler in your deck or rune deck.
J/rulers you control with [Divinity] gain [Divinity] (+6).

If you would draw a card during your draw phase, pay 300 or 700 life instead. Put the top card of your deck into your hand for each 300 life paid this way.
If you would gain 600 life or more, you gain 500 life instead.
You pay 1 less to play spells with "Diabolos" in their name.