Gensokyo/Icy Greatsword

The Icy Greatsword is a Hardmode melee weapon. Hitting an enemy with this weapon will apply the Frostburn debuff for 2 seconds.

When swung, it shoots small icicle shards, which also inflict Frostburn: on a critical hit, the debuff will be inflicted for 2 seconds; otherwise, for 1 second only.

Trivia

 * This weapon is a reference to the sword created by Cirno during the spellcard Ice Sign "Sword Freezer" in Hisoutensoku.
 * The weapon's tooltip refers to Cirno's catchphrase "I'm the strongest" in a lot of fanworks of Touhou.