"You don't lose" (Permanents that prevent you from losing the game while they're on the battlefield, usually with an alternate means to lose.) Primary: Black Secondary: White This started with Lichin Limited Edition (Alpha) and has continued to be used on rare occasion
If you're curious about one that you might have, take a gander at these unique cards
It is a bit situational, requiring you to have a completely open opponent, but each time you deal damage to a player with a creature enchanted with Breath of Fury, you get an extra combat step at the cost of sacrificing the enchanted creature, reattaching the enchantment to another creature
"It does happen on occasion." No matter how much testing you perform, once it's done, it's done
The green deck tactic of resting and attacking Characters gets a helping hand from extra Characters to quickly pick up the pace