When you do, itll be saucy
Common strategies include reaching a specific life total, like with Felidar Sovereign, or fulfilling a condition like Jace, Wielder of Mysteries, or Approach of the Second Sun
Brawl Legal Vintage Legal Timeless Legal Commander Legal Pauper Not Legal Oathbreaker Legal Penny Not Legal Toolbox Notes and Rules Information for Emet-Selch, Unsundered // Hades, Sorcerer of Eld: Emet-Selch's last ability checks your graveyard at the moment it would trigger to see if you have fourteen or more cards in your graveyard
Note that there are effects that can transform certain double-faced cards, like for example Moonmist
In fact, I think with Force of Negation I hard-cast it about a third of the time, compared to Force of Will, which I hard-cast probably less than 10% of the time
Since Cloud is a Commander, if he is destroyed, you can easily bring him back, though he will have an additional Mana Cost