In the meantime, theres a bunch of other new cards to browse on the Wizards of the Coast website
You can copy a fetch land to ramp out a bunch of lands at once, or copy a game-winning ability to end the game in a wild way
To determine the total cost of a spell, start with the mana cost or alternative cost you're paying (such as a flashback cost), add any cost increases (such as kicker costs), then apply any cost reductions (such as that of The Darkness Crystal's first ability)
180 Magic: The Gathering FINAL FANTASY Play Boosters
The card also has a lot of in-color synergy to abuse, like Living Death that recurs all creatures out to the battlefield
In this deck, the Great Stone Dragon actually ends up being phenomenally effective