From the Super Mario Wiki
Dark Magikoopas are shady Magikoopas that are found in rooms 49, 59, 61, 62, 63, 82 and 92 of the Flopside Pit of 100 Trials, in the game Super Paper Mario. Like all "dark" enemies, they are stronger than their relatives, although their attack pattern is unchanged. Dark Magikoopas throw red spells at their opponents, but these can be countered by using Barry, and while they use their broomsticks to fly around, Dark Magikoopas can be stomped on by a hero. Their Catch Card jokingly states that they wear contacts instead of glasses.
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