Visage of Dread
Artifact
When this artifact enters, target opponent reveals their hand. You choose an artifact or creature card from it. That player discards that card.
Craft with two creatures 
(, Exile this artifact, Exile the two from among creatures you control and/or creature cards in your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.)
Dread Osseosaur
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Creature — Dinosaur Skeleton HorrorMenace
Whenever this creature enters or attacks, you may mill two cards. (You may put the top two cards of your library into your graveyard.)
"It's not my fault! The glyphs for 'blessed' and 'cursed' look very similar!" —Diego, Brazen Coalition translator
David Auden Nash
Rulings
You may exile tokens you control as part of the materials required. However, because they aren't cards and won't stay in exile, any abilities that refer to what you "used to craft" the back faces won't refer to anything.
(wotc • 2023-11-10)
If a card that isn't a transforming double-faced card becomes a copy of a card with craft, it'll stay in exile if you activate the craft ability. It won't return to the battlefield.
(wotc • 2023-11-10)
If you don't have at least two cards in your library, you can't choose to mill two cards.
(wotc • 2023-11-10)
If the materials required include multiple objects, you may exile some of them from among permanents you control and the rest from among cards in your graveyard. You don't have to choose all permanents or all cards from your graveyard.
(wotc • 2023-11-10)
The back faces of some cards with craft refer to cards "used to craft" it. This refers to the cards exiled as part of the cost of the craft ability of the front face. Those cards are considered to be "used to craft" that permanent as long as they remain exiled and the permanent remains on the battlefield, even if the permanent's controller changes or some of its characteristics change (because of a copy effect, for example.)
(wotc • 2023-11-10)
Rulings
You may exile tokens you control as part of the materials required. However, because they aren't cards and won't stay in exile, any abilities that refer to what you "used to craft" the back faces won't refer to anything.
(wotc • 2023-11-10)
If a card that isn't a transforming double-faced card becomes a copy of a card with craft, it'll stay in exile if you activate the craft ability. It won't return to the battlefield.
(wotc • 2023-11-10)
If you don't have at least two cards in your library, you can't choose to mill two cards.
(wotc • 2023-11-10)
If the materials required include multiple objects, you may exile some of them from among permanents you control and the rest from among cards in your graveyard. You don't have to choose all permanents or all cards from your graveyard.
(wotc • 2023-11-10)
The back faces of some cards with craft refer to cards "used to craft" it. This refers to the cards exiled as part of the cost of the craft ability of the front face. Those cards are considered to be "used to craft" that permanent as long as they remain exiled and the permanent remains on the battlefield, even if the permanent's controller changes or some of its characteristics change (because of a copy effect, for example.)
(wotc • 2023-11-10)