Bog Beacon Asco Caps are alchemical ingredients taken from Bog Beacons, a long-stemmed, round-headed species of mushroom indigenous to Blackwood and the Nibenay Valley. Bog Beacons likely got their name from their vividly colored caps, which resemble beacon lights in the darkness of the Blackwood swamp. As alchemical ingredients, they are especially useful in the creation of Restore Magicka potions, as well as Shield potions.