1. On bouge Kroxa en pile.
2. On exile 5 cartes.
601.2a To propose the casting of a spell, a player first moves that card (or that copy of a card) from where it is to the stack. It becomes the topmost object on the stack. It has all the characteristics of the card (or the copy of a card) associated with it, and that player becomes its controller. The spell remains on the stack until it resolves, it's countered, or a rule or effect moves it elsewhere.
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601.2h The player pays the total cost. First, they pay all costs that do not involve random elements or moving objects from hidden zones to public zones in any order. Then they pay all remaining costs in any order. Partial payments are not allowed. Unpayable costs can't be paid.