Calamity Mod Wiki
Gael's Greatsword.png
Witness the horror!
Malice Mode-Only Content: This information applies only to Malice Mode and Malice Mode worlds.
This page describes old mod content that was removed or replaced. The information here does not apply to the current version of the Calamity Mod.
Grand Dad
  • Grand Dad.png
Stack digit 1.png
Damage777 Melee
Knockback77 (Insane)
Critical chance4%
Use time24 Fast
TooltipLowers enemy defense to 0 when they are struck
Yeets enemies across space and time
RarityRarity Level: 10
Sell 20 Gold Coin.png
Dropped by
Moon Lord1100%

The Grand Dad was a Post-Moon Lord broadsword that dropped from the Moon Lord in Malice Mode. Whenever the Grand Dad contacted a non-boss enemy, their defense was reduced to zero and their knockback resistance was set to -600%. It also had an exceptionally high knockback stat and size.

Its best modifier was Legendary.


  • Grand Dad dealt 75% of its original damage on Polterghast and Signus, Envoy of the Devourer.
  • The Grand Dad's knockback resistance removal could affect enemies that are immune to knockback.
  • The defense and knockback resistance removal did not affect enemies with no contact damage or most event minibosses.


  • The knockback made this weapon a good tool to keep an enemy with high health away.


  • Its name and tooltip, as well as the "7" on its sprite (and the 777 base damage and 77 knockback), were a reference to a meme known as "7 GRAND DAD," a Chinese bootleg copy of The Flintstones: The Rescue of Dino & Hoppy for the Famicom system and popularized by Vargskelethor a.k.a Joel from Vinesauce, and SiIvagunner.
  • The word "Yeet", which is present in the tooltip, is internet slang that means "to throw at high velocity".
  • It was formerly the rare variant of the Grand Guardian.