Pay the converted mana cost of 5, and you take another turn after your first one
What did surprise me though is how nice the Graveyard subtheme ended up being: I count 20 cards that interact with the graveyard directly with a very generous definition, including anything that recurs (Starfield of Nyx), puts itself in the graveyard (Binding the Old Gods), puts other enchantments in the graveyard (Nyxborn Behemoth), or triggers off enchantments going into graveyards (Narci, Fable Singer)
This comes only weeks after the game saw its first additional card set, Mythical Island, debut in early December
People who open Jumpstart casually end up keeping the cards, and so the available supply is restricted to those who can open Jumpstart in some quantity
And if the extra chip damage from its ability doesnt win you the game, its evasive body paired with Mintharas power boost just might