A single question has always vexed those who attempted to battle against Masquerain: how do you fight what you're too afraid to see? Masquerain have only been depicted in art from certain angles, their wings half-eyeballs, not full ones, for their true appearance is said to drive men and pokemon to madness if viewed directly, so all avert their eye-patterned wings as though they were locked in combat with the Sun. Photographs and videos are typically safe to view, but the cameramen always insist in between babbling horrific nonsense that what they captured looks little like the real thing.
The strategies used to fight Masquerain are manifold but ineffective. Mammalian pokemon attempt to fight by scent, but the various spores these pokemon unleash not only cripple their foes but make scent no more reliable than sight. Other pokemon use wide-range or homing attacks to increase their odds of a clean hit, but these attacks are rarely the most powerful moves possessed by their users. Pokemon unable to fall back on either of these tactics simply rely on peripheral vision and careful, deliberate attacks, and regain a surprising level of accuracy at the cost of power. Whatever strategy they use, however, pokemon must grapple with the fact that their equally blinded trainer is unable to judge the health of their target.
The best way to defeat a Masquerain is to make it defeat itself. A Masquerain's true eyes are so remarkably sharp that they can see their own reflection wherever rain falls. To avoid going mad, they fold up their wings and descend to the ground instantly, where they attempt in vain to fight by skating on the water like Surskit. It is for this reason that Masquerain alone can not fly through storms, but are grounded by a drizzle.