When afflicted with the common cold, Heatblast's (Ben 10) powers are reversed, giving him ice power instead of fire power.
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The power to release/use ice and fire to various attacks. Sub-power of Ice-Fire Manipulation...
The power to project balls of ice and fire. Sub-power of Ice-Fire Attacks. Combination of Ice...
The power to change one power to another with the opposite effect of the original power...