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  • Photosynthesis.png
Stack digit 1.png
TypeWeaponCrafting material
Damage60 Magic
Knockback4 (Weak)
Mana cost10
Critical chance4%
Use time24 Slow
TooltipCasts a brilliant ray that dissolves into energy on enemy hits
More energy is created the farther along the ray the hit enemy is
RarityRarity Level: 8
Sell 12 Gold Coin.png
Research1 required
Projectile created
Photosynthetic Solar Beam
Solar Beam
Not to be confused with Photosynthesis Potion, a Hardmode potion.

The Photosynthesis is a craftable Hardmode wand that functions similar to the Valkyrie Ray. When used, it shoots a straight green laser beam which pierces infinity but loses 5% damage for each hit, which lingers long enough to hit enemies 4 times before disappearing. When the laser hits an enemy, it spawns homing energy bolt projectiles. The amount of bolts it creates depends on the enemy's distance from the player when hit: If the hit enemy is close to the player, it only creates 1 energy bolt per hit, but it can create up to 3 bolts per hit if the enemy is far away.

Its best modifier is Mythical.



Used in


  • Photosynthesis is a process in which plants convert light into usable energy.
  • The name of the Solar Beam projectile is based on a Grass-type move from the Pokémon game series, which utilizes photosynthesis to fire a powerful beam.


These history sections are still a work-in-progress, and may not yet contain changes relevant to the current version of the Calamity Mod.
    • Renamed from "Terra Ray" to "Photosynthesis".
    • Beams now pierce infinitely instead of 9 times, but lose 5% damage per hit.
    • Shards now home towards the closest enemy instead of the earliest enemy in the NPC array.
    • Now has a glowmask while being used.
    • Resprited.
  • No longer has an alternate recipe using Carnage Ray.
    • Buffed damage from 50 to 60, but the beam now grants 12 local immunity frames instead of 8.
    • Hits now spawn up to 3 shards based on distance instead of 4, and shards now deal 50% base damage instead of 60%.
  • Decreased sell price from 16 Gold Coin to 12 Gold Coin.
  • Now uses 12 Living Shards in both of its recipes instead of 7.
    • Shard no longer homes into enemies behind tiles.
    • No longer considered a nature weapon.
    • Fixed an issue where shards did not deal damage.
  • Now uses Valkyrie Ray in its recipe.
  • Nerfed damage from 85 to 50, and use time from 19 to 24.
    • Buffed damage from 75 to 85.
    • All projectiles now set NPC immunity frames to 8.
    • Buffed damage from 55 to 70, but nerfed knockback from 5.5 to 4.
    • Resprited.
  • Buffed damage from 40 to 55, and use time from 29 to 20.
    • Nerfed use time from 25 to 29.
    • Split beams now last 0.25 seconds instead of 0.5.
    • Dust is now larger, but less frequent.
    • Split rays are now wider.
    • Removed tooltip "Fires a beam of life energy that can split into additional beams. Enemies must be near for the beam to split".
  • Can now use Carnage Ray in its recipe as an alternative for Night's Ray.
  • Now uses 7 Living Shards in its recipe instead of Shadowbeam Staff and 5 Living Shards.
  • Nerfed damage from 47 to 40.
  • 1.1.7:
    • Nerfed damage from 54 to 47.
    • Split beams now deal 70% main beam damage instead of 42.5%.
    • Split beams now last 0.5 seconds instead of 2, and secondary split beams now last 0.5 seconds instead of 0.17.
    • Nerfed damage from 57 to 54.
    • Resprited.