Jin-Gitaxias, Progress Tyrant

The asymmetry is the whole design thesis. Most Praetors hand you a static advantage and ask you to build around it; this one splits its engine down the middle and points the two halves at opposite sides of the stack. The first artifact, instant, or sorcery you cast each turn comes twice; the first one an opponent casts each turn never resolves. Both triggers fire on every turn, not just your own, so the copy half can double an instant on their turn, and the counter half can wall a spell they try to sneak in during yours. Enchantments and planeswalkers slip past both triggers untouched, which quietly shapes how anyone fights back against it. That both halves reset each turn rather than firing on every spell is what keeps this from a hard lock: the counter is no permanent wall, so an opponent who baits it with a cheap spell and then lands the real threat can slip a resolution through. That single window is the pressure valve on a card that would otherwise read as "you win the spell fight forever." The copy clause runs deeper than free value because it lets you choose new targets: a removal spell clears two threats, a tutor fetches two cards' worth of setup, a burn spell doubles into reach it never had. It rewards spells that scale with a second copy rather than merely repeating them. Meanwhile the counter half taxes tempo before it taxes resources, forcing opponents to sequence around a 5/5 body that also happens to be a clock.