Gensokyo/Roukanken

The Roukanken is a Hardmode melee weapon. Triggering its alternate attack causes the player to dash forward at a high speed. During the dash, the player is immune to damage, and the Roukanken's damage is increased by 50%. The cooldown of the alternate attack is 4 seconds.

The Roukanken becomes available for purchase at the Curio Trader after defeating a Tier 5 Boss.

Trivia

 * Roukanken is one of the two swords wielded by Youmu Konpaku. The alternate fire appears to be a reference to the spell card Human Sign "Slash of Present" from Hisoutensoku.