This clever setup lets you weaponize your own life total right in the middle of your upkeep. With Tidal Barracuda allowing everyone to cast spells at instant speed while locking your opponents out of your turn entirely, you can safely drop Storm Herd in response to your own upkeep trigger. That flood of flying Pegasus tokens swells your board presence massively, ensuring that when Court of Embereth finally resolves, its triggered ability counts every single one of those new bodies—alongside the additional 3/1 Knight it creates—to blast your opponents for lethal damage.