I thought this item was going to be a trashboy on the level of "+5 keys and gives The Lost something to hold so that hitting spacebar accidentally doesn't end a run".
Holy hell this thing melts bosses.
Taurus Interaction?[edit source]
Before I edit the page, I'd like someone else to verify this and make sure it isn't a bug. However, there seems to be an interaction between Sharp Key and Taurus. Specifically, when I used the Sharp Key while Taurus was making me invincible, it machine-gun fired, launching what's effectively a "beam" of key projectiles and rapidly draining my keys. Can someone else reproduce this to be sure? --22.214.171.124 20:33, 10 March 2018 (UTC)