Chromatic Cloak

The Chromatic Cloak is a Hardmode accessory which allows a more controlled Shimmering. When equipped, touching Shimmer does not inflict the Shimmering debuff, and the player can instead start Shimmering at any time while under Shimmer by holding the key. However, after Shimmering starts, it cannot be interrupted, not even by re-equipping the Chromatic Cloak.