Chicken Cannon - Official Calamity Mod Wiki

The Chicken Cannon is a post-Moon Lord launcher that can be dropped by Yharon, Dragon of Rebirth. It rapidly fires chicken rockets that bounce up when hitting the ground, then explode with a very large radius and inflict the Dragonfire debuff. The explosion lingers for a few seconds and ignores immunity frames. Right-clicking while any rockets are still in the air causes them to instantly explode.

Crimsaber - Official Calamity Mod Wiki

Finally two final bosses beaten (Infernum) : r/CalamityMod

The Pack - Official Calamity Mod Wiki

Chicken Cannon - Official Calamity Mod Wiki

Exo Gladius - Official Calamity Mod Wiki

Voltaic Climax - Calamity Mod Wiki

Yharon, Total Calamity Wiki

All Reworked Weapons - Terraria Calamity v1.5 Draedon Update

This is how Moon Lord killed Yharon in the lore (based on how huge