Golbez, Crystal Collector
The 1/4 body is a wall, not a threat, and the card is content to sit behind it counting metal. The surveil fires whenever an artifact you control enters, which fills your graveyard by the same motion that builds toward the two thresholds that make the card go: four artifacts hands you back a creature at your end step, eight adds a drain keyed to that creature's power. That staggered escalation is the design's spine. Most artifact-matters payoffs give you one line at one number; this one asks whether you've built shallow (recur a small body and rebuild) or deep (recur a fat threat and burn the table for its power on the way back to hand). The card returns the creature to your hand rather than the battlefield, and that is the discipline holding the whole thing in check: you pay the cost again to redeploy, and the life-loss is a one-time tax on the return, not a per-turn drain unless you can recast and re-fill the yard each cycle. The two colors braid tightly here, and both do structural work: blue supplies the artifacts and the surveil that stocks the yard, black supplies the recursion and the reach. Neither half functions without a genuinely metal-heavy build, so the card resists being splashed as a two-drop value creature; it only comes online once you've committed to the count it's counting.
