Cross of Mercy

The Cross of Mercy is a melee weapon added by Xeno's Reliquary. It functions similarly to a sword, with the exception that upon striking an undead creature (skeletons, wither skeletons, zombies, the Wither), it unleashes a "holy blast of concussive force" that damages and knocks back all undead around the target. 

It can be found in top-tier Battle Tower chests.

Recipe

the Cross of mercy

Trivia

• This item has "examine" text with "'Damn, that thing's heavy!' That, my friend, is because it's so full of mercy." This is a reference to Trigun Season 1, Episode 9.