Asgardians, such as Odin and Thor. Like all Asgardians his body is three times more dense and heavy than a human's, contributing partly to his superhuman strength and weight. Heimdall possesses extraordinarily acute superhuman senses, most notably his vision and hearing. His senses are said to be so acute that he could hear sap running through trees, and "the tiniest plant growing in the heart of the hidden hills", and see and hear anything occurring in Asgard or on Earth. Heimdall can also "look across time, as well as space", in one instance seeing the far-off approach of an invading party and correctly predicting that they were still a full two days away from Asgard; this ability to see what has yet to come is retained even after the establishment of the new Asgard on Earth. Heimdall has been said to be capable of detecting the fluttering of a butterfly's wings "a thousand worlds away". Heimdall is able to sense the life essences of Asgardian gods throughout the Nine Worlds of Asgard, and has the ability to focus on certain sensory information or block it out of his consciousness as he chooses, being so alert that he requires no sleep at all. According to Ares in his War Plan for the Siege of Asgard, Heimdall can "see and hear as far as creation", even capable of seeing the Dark Avengers at Avengers Tower from Broxton. Certain magical spells can block his sensory powers. Additionally, his powers of sight are limited if even one of his eyes cannot see; apparently his eyes are capable of sustaining physical injury and require a long time to naturally heal, if ever. At least once, Heimdall has shown the ability to project an avatar (as an enlarged image of his face) to others from just outside Broxton to Manhattan, as he did with Thor, though he claims that he cannot maintain it for long, as his power has diminished with the fall of Asgard. Heimdall also briefly possessed the Odinpower which granted him the ability to channel vast magical energies, for various purposes, such as repairing the shattered dimension-linking Rainbow Bridge. Heimdall is an experienced warrior and a fierce hand-to-hand combatant. He has proficiency and great experience with edged weapons and wields a variety of swords, shields and spears and he wears a suit of armor. Heimdall bore the Gjallerhorn ("Yelling Horn"), which he would