Calculated Dismissal

Counter target spell unless its controller pays {3}.
Spell mastery - If there are two or more instant and/or sorcery cards in your graveyard, scry 2. (To scry 2, look at the top two cards of your library, then put any number of them on the bottom of your library and the rest on top in any order.)
Jeskai are truly difficult to understand. Sometimes they say 'yes' but they really mean 'no'.