In The Feels, Omni-Enhanced Diamondhead saved Gwen.In Chicken Nuggets of Wisdom, Omni-Enhanced Diamondhead defeated Dr.In Super-Villain Team-Up, Omni-Enhanced Diamondhead helped escape Vilgax's ship by making a ramp for the Rustbucket to safely drive on.In That's The Stuff, Omni-Enhanced Diamondhead defeated the Space Slime.

Omni-Enhanced Diamondhead first appeared in Out to Launch, where he battled Vilgax in the experimental space plane.

While Omni-Enhanced Diamondhead is immune to aging, his rock armor isn't, resulting in him reverting to normal Diamondhead and losing the armor. Since his body is made of diamond and rock, Omni-Enhanced Diamondhead can sink in water. Whilst Omni-Enhanced Diamondhead can regenerate, there is a certain extent to how much damage he can recover from. He also gained a slight resistance to the latter with the rock armor covering some parts of his diamond body. Omni-Enhanced Diamondhead shares the same weaknesses as his default form, namely the risk of cracking and shattering if exposed to enough force or strong sonic vibrations. Omni-Enhanced Diamondhead can regenerate, albeit only to a limited extent. Omni-Enhanced Diamondhead is immune to the affects of aging, as his body is composed entirely of crystals (which do not age). Omni-Enhanced Diamondhead can also shoot blue energy out of his left arm.Дue to the natural density of crystal, Omni-Enhanced Diamondhead is extremely durable to physical impacts, even more so than in his normal form because of the extra rock armor gained. The energy moves through the energy in Omni-Enhanced Diamondhead into his sword, which can be converted into other energy weapons. He can also absorb energy being shot at him. Omni-Enhanced Diamondhead's body resembles a prism, thus allowing for him to let weapons similar to lasers to be refracted or reflected, thus rendering those attacks useless against him. Omni-Enhanced Diamondhead shares the same abilities as his default form, namely his ability to manipulate the atomic structure of his physiology at will, or to shoot or form large clusters of crystals as he wishes to.

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