Catch the Rainbow

Catch the Rainbow belongs to the assassin Blackmore and appears throughout Steel Ball Run. It is worn rather than summoned, taking the shape of a pale mask locked onto its user's face, which classes it as both a close-range and an integrated Stand. A weighty ridge sits above the eye holes, the face carries no nose, and a run of vertical slits marks where a mouth would be. Three bright bands sweep from one eye toward the opposite cheek, a design Araki built as a rainbow spin on a hockey goalkeeper's mask. Viz publishes the Stand under the alternate name Stroboscope.

The Stand's whole arsenal is tied to weather. Blackmore can act on rainfall only while a true storm falls over him, and the moment it lets up every effect he has set in motion collapses, leaving nothing but the inert mask until the next downpour. Artificial rain does not count; the water has to arrive naturally.

His core trick is halting individual drops so they hang frozen in the air, firm enough to bear his weight or to knock aside a hurled Steel Ball. From those suspended droplets he climbs into the sky, seals off a wide swath of stopped water, or shapes the drops into cutting edges. Anyone who forces a path through frozen rain is shredded as the drops tear inward, a wound that can prove lethal.

Blackmore can also merge his body with the rain, letting drops pass straight through him and open gaps in his form; the missing pieces reassemble from those same drops some distance off and keep working, so he can, for instance, send his mouth away to speak to a target. Fully dissolved, he turns as fluid and intangible as water, slipping past bullets and racing great distances wherever rain reaches. He even packs raindrops into his injuries to stop the bleeding, though that patch fails the instant the storm ends.

Blackmore is the only wielder of Catch the Rainbow. He turns it against Mountain Tim during a rainstorm, relocating his own body parts and weaponizing the falling water to slash at him, and the Stand serves him right up until his defeat.