The Duel

I-Each player may search their library for a legendary creature card, reveal it, and put it into their hand. Then shuffle.
II-Each player may put a legendary creature card from their hand onto the battlefield. Then, those creatures fight. (Even if controlled by the same player.)
III-Choose one for each legendary creature you control:
•It gains double strike and hexproof until end of turn.
•Or, it phases out. (It returns at the beginning of your next turn.)

"Let's settle thi