mtg from the vault transform card list / From the Vault: Transform V17

If White Auracite leaves the battlefield before its triggered ability resolves, the target permanent won't be exiled

If Sephiroth, Fabled SOLDIER and one or more other creatures die at the same time, its last ability will trigger for each of those other creatures

Lands aren't "cast"

If you cast a spell for another cost "rather than pay its mana cost," you can't choose to cast it for any alternative costs

If this card is used later in the game, when several dragons (tokens) have already found their way into the game and are destroyed or targeted, good damage can be generated

For one, it needs to be available, and not just on the secondary market