The Crawlerock Staff is a Pre-Hardmodesummon weapon that is dropped from Cavern Crawlers. It spawns a baby Cavern Crawler minion aid you in a battle that can move and bounce quickly to killed enemies nearby. Like other minions, summoned Cavern Crawlers are invincible and follow the player for an unlimited amount of time, unless the player dies, summons a replacement minion, or cancels the buff.
Its best Modifier is Ruthless. The Mythical modifier provides the widest array of stats bonuses, but these primarily affect the initial summon rather than the resulting sentry. Additionally, Minions and Sentries cannot deal critical hits. The only significant advantage a Mythical Crawlerock Staff has over a Ruthless one is knockback.