Picksaw

The Picksaw is an item dropped from the Golem. It is currently the most powerful pickaxe in the game, being superior to the Drax, Pickaxe Axe, Chlorophyte Drill, Chlorophyte Pickaxe, Spectre Pickaxe and the Shroomite Digging Claw. It can break the Lihzahrd Altar and Lihzahrd Bricks. The best possible prefix is Legendary.

Trivia

 * The picksaw is referenced in the Drax's (new) tooltip: 'Not to be confused with a Picksaw'.
 * "Picksaw" is a portmanteau of words, Pickaxe and saw, because it can perform the actions of both, just like the Drax being axe and drill.