Belligerent Patron

At any time you may pay half of your starting life total, rounded up. If you do, you may re-flip a coin. (This is a special action that you may do only if your life total would not become negative.)
Whenever you would flip a coin, you may clash with target opponent instead. (Each clashing player reveals the top card of their library, then puts that card on the top or bottom. A player wins if their ca