Iowa Group

Named for their most notable feature, a flying copy of BB-61, the USS Iowa (Wikipedia link). They are known to target friends and family of the magical girls in the cities they raid, along with locations important to them. They also take hostages, and force the local girls they capture to hunt witches for grief seeds for them.

After the storm they used for scrying on Mitakihara was noticed to be unnatural by Nakano Mika, a task force of White Ribbon, Third Eye, the Shiogama Refugees, the Fukushima Mercenary Group, the Pleiades Saints, and Nakano Mika was assembled, and the Iowa Group was tracked down and defeated in Mandalay, where they were terrorizing the local Mandalay Group.

Tsuruya Yuki is currently keeping each member of the Iowa Group in a separate sealed dimensional space, with their Soul Gems held at the very edge of connection range and ready to be disconnected at a moment's notice. This is then further supplemented by various additional enchantments, including antimagic from Kirika.

Parró - "Captain" - Able to summon and control a flying copy of BB-61 USS Iowa.

Amy Allais - "Storm Mage" - Able to scry through storms and broadly control the weather on an international range.

Olivia Smith - "Antimage" - Antimagic is a constant bubble, but only fully stops conceptually "hostile" effects. According to Umika, her ability has a mental component too, and may be responsible for the lack of available details on the Iowa Groups operations.

Sarah - "Power Girl" - Super strong, super fast, can fly. Appears to have the generic superhero "flying brick" package. Tried to invoke the right to remain silent.

Sylune - "Wizard Girl" - Able to summon elemental blasts and illusions.

Linnea - "Reflect Girl" - Reflects any damage done to her onto the person causing it.

Krystal - "Power Amplifier" - Able to intensify the powers of other magical girls she is in contact with.

Catherine - "Healer" - Able to heal very quickly - reconstructed a destroyed hand instantly. Paralyzed the Mandalay Group when they tried to escape in a semi-permanent fashion, causing nerve damage that counted as their bodies "natural state" for healing purposes.

Hilda - "Stealth Specialist" - Able to both hide from notice and hide others from notice.

Lana - "Subtle Telekinesis ('Luck')" - Racist, called Sayaka a slur.