At average speed, one can do about 60 trips to the blood altar via the Abyss per hour, using the amulet of glory to teleport back to Edgeville, and using the tool belt items to mine through the rocks in the abyss. You need to recharge your pouches every 7 to 9 trips, to prevent the giant pouch from degrading. The amount of blood runes crafted increases at higher levels, up to about 15% at 99, due to the greater likelihood of crafting two runes per essence. With lesser familiars, you'll be reduced to 3960 or 3660 essence respectively. Abyssal lurker: Abyssal parasite: