Cards like Rapunzel, Gifted with Healing, let you draw and heal, while Elsa, Spirit of Winter, can freeze opposing characters, buying you time to quest safely
In Commander, it obviously works with a variety of flickering strategies, with bodies such as Mulldrifter, Solemn Simulacrum, and Karmic Guide along for the ride
Then Will of the Jeskai will make everyone wheel five if they want
You must discard cards (if you have more than the maximum hand size) during your cleanup step, not during your end step
The first player is usually heavily advantaged in modern Magic, and designs like Lonely End and Sylvan Smite give the second player more stabilizing potential when playing from behind