There's no place for racism in our game, nor anywhere else
You can either go wide by putting counters on various creatures or go tall on Mazirek and beat people down
In many cases, buying the challenger deck, and the upgrades will save you a few bucks, but the cards youre replacing dont just disappear, they still add value to your collection
Brave the Elements can finish the game by letting us crash through blockers with little to no regard for their presence, while Eerie Interlude not only retriggers all our enters-the-battlefield effects (which gets silly with multiple Thalias Lieutenant) but also lets us dodge Wrath of God, Supreme Verdict, and any other non-damage-based sweeper
Naturally, while the activated ability is on the stack, the opponent may counter it with something like Disallow, then the effect will not be created
Back in the old days of Magic (like ten years ago), single card prices were based mostly on their age, availability, and playability