If you choose not to cast any of the exiled nonland cards (either because you can't or don't want to), those cards will remain in exile as well
If you searched for a creature card that doesn't have that name, you may put it onto the battlefield under your control
Number 215 Language English Legal Formats Commander, Legacy, Modern, Vintage Not Legal Formats Alchemy, Brawl, Competitive Brawl, Historic, Pauper, Pioneer, Standard, Timeless Rulings (10/1/2009) You don't choose the exiled cards until Mirror of Fate's ability resolves
Increasing a creature's power after it has blocked a creature affected by Squeak By will not remove that blocking creature from combat or make the affected creature unblocked
Repudiate / Replicate One of the good things about split cards is allowing the user to play narrow effects, and fewer cards are narrower than Stifle (Repudiate)