Joshua, Phoenix's Dominant // Phoenix, Warden of Fire

You can choose to discard no cards when Joshua's first ability resolves. If you do, you won't draw any cards.

A token that is created as a copy of a double-faced permanent or a double-faced card in another zone is a double-faced token. It will have both the front face and back face of whatever object it's copying. If it's copying a double-faced permanent whose back face is up, the token will enter with its back face up. It can transform if instructed to do so.

If a card in your graveyard has {X} in its mana cost, X is 0 for the purpose of determining its mana value.

If you are instructed to put a card that isn't a double-faced card onto the battlefield transformed, it will not enter at all. In that case, it stays in the zone it was previously in. For example, if a single-faced card is a copy of Crystal Fragments, it will be exiled during the resolution of its second ability and remain in exile.

Each face of a nonmodal double-faced card has its own set of characteristics: name, types, subtypes, abilities, and so on. While a nonmodal double-faced permanent is on the battlefield, consider only the characteristics of the face that's currently up. The other set of characteristics is ignored.

The mana value of a nonmodal double-faced card is the mana value of its front face, no matter which face is up.