[quote=thewizardguy]
Matter can AFFECT time, as can be seen during, for example, space travel. However, it does not counteract time. That's like saying that time is the opposite of ice, because ice can be affected by time.And ice is simply another form of water. And it's not an opposite, as it can't cancel lava out. Instead, you're using a force that can affect lava, and then attempting to create a temperature so low it'll freeze the lava. However, time is required for this change to take effect. If you want to instantly freeze lava, that will take a lot more energy than counteracting it or creating it would, meaning you would rapidly tire yourself out.If you want to expand this, name the opposite of stone, wood, or electricity. What's the opposite of diamond, or psychic energy. The opposite of love, There are tons of things which have no specific opposites, i can name a stack more.
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the opposite of wood is fire, electricity is earth, and stone would be lava. diamond is under the crystal element which has the same opposites as stone, and psychic energy is the opposite of the corpus element, the opposite of love is hate (both of which are a pain in the ass to make) and ice also represents cold. also, this doesn't make you tired like normal, it expends mental energies to remember the arcanum and bring them into being. other than that you can do what ever and not expend much energy :P