When Clocknapper enters, choose beginning phase, first main phase, combat phase, second main phase, or ending phase. Steal that phase from target player during their next turn. (That phase occurs as though it's your turn instead.)
When Clocknapper enters the battlefield, choose beginning phase, precombat main phase, combat phase, postcombat main phase, or ending phase. Steal that phase from target player during his or her next turn. (That phase occurs as though it's your turn instead.)
--This card has no flavor text --