For example, you can't cast a sorcery with spectacle during an opponent's turn unless another effect allows you to do so, even if that player has lost life this turn
Winter, Cynical Opportunist, provides the opportunity to keep replaying cards that have died so long as you maintain a state of delirium
In all seriousness, though, a panic button available to any deck is something to be wary of, and its appreciated that designers were mindful to limit the potential for annoying scenarios by making this legendary and having it exile itself on activation
The Commander format serves as a casual alternative to normal competitive play
This puts the deck over the top with removal or player kill too
As always, please bear in mind that our focus here is not necessarily competitive but rather thematic, archetypical commanders