Starfield of Nyx

The two halves do different jobs, and the friction between them explains the following this card keeps. The upkeep recursion is a slow but relentless engine: one enchantment back from the graveyard every turn, which over time turns any deck with sacrifice-fodder enchantments or graveyard-feeding effects into an attrition machine that simply cannot be ground out. The second half is the showpiece. Cross the five-enchantment threshold and your static value pieces, your mana rocks made of cardboard, your tax effects, your global anthems stand up and swing for their mana value. What stops it short of a free win is the non-Aura clause paired with that threshold: you have to commit a real board before anything animates, and dropping back below five at any point switches the team off and leaves it merely sitting there. The recursion and the animation feed each other through a wrath, though: a board wipe that kills your animated enchantments only stocks the graveyard the upkeep trigger pulls back from, and because the static clause animates each other enchantment, Starfield itself never becomes a creature and never joins them in the bin. This is the design that finally gave the long-running enchantress idea a way to close a game past card draw. Opalescence did the animation years earlier and more dangerously (no threshold, no Aura exemption, no floor), but it asked nothing of your board and cut both ways. Starfield trades that knife-edge for a gate and a graveyard loop, which is why it became the version of the effect decks want to run rather than survive.