Blood Thorn

Hemogoblin shark drops and surface thorn eruption

Awarded as a drop from the Hemogoblin Shark with a 12.5% chance when fishing during a Hardmode Blood Moon. Casting the staff expends 20 mana to sprout a cluster of sharp crimson thorns from solid surfaces adjacent to the target cursor. These spikes pierce through multiple adversaries, hitting for 40 base magic damage and 1 knockback while ignoring intervening walls and solid terrain.

Enclosed arena burst and segmented boss encounters

Because its thorns erupt directly from surrounding blocks, the Blood Thorn excels in subterranean caverns, dungeon hallways, and custom enclosed arenas. It outperforms projectile spells like Crystal Serpent when confronting clustered swarms or multi-segmented bosses such as The Destroyer, where each thorn hits several segments at once. In open skies, fewer spikes generate due to the absence of nearby terrain. The optimal reforge modifier is Mythical.

Trivia

• The thorns emerge from solid blocks closest to the player cursor rather than traveling outward as traditional magic projectiles from the caster.
• Because thorns require surfaces to sprout from, casting the spell high in open air significantly reduces the quantity of generated spikes.