Dryad

The Dryad is an NPC vendor that will spawn once the following criteria have been met:
* There is an empty house.
* The Eye of Cthulhu, Eater of Worlds, Brain of Cthulhu, Skeletron or Lepus has been defeated.
In addition to selling items, the Dryad can also report the percentages of Corruption/Crimson and Hallow that exist in the current world.
 On the , when enemies are nearby, the Dryad will periodically grant the Dryad's Blessing buff to players and other town NPCs in the vicinity and displays a leaf barrier effect. The buff grants +8 defense to players and +6 / / defense to town NPCs, increased health regeneration, and gives the player (and town NPCs) a Thorns effect. Enemies within the leaf barrier and with clear sight to the Dryad will be inflicted with the Dryad's Bane debuff, which will deal 4+ damage per second (plus various progression-based damage boosts, and all multiplied by 1× / / ); the minimum damage dealt by the Dryad's Bane debuff is 4 / / per second.
== Items sold ==
== World status ==
The Dryad's reports on Corruption/Crimson/Hallow coverage are accompanied by a status message. She sees Hallow as "good", and Corruption or Crimson as "bad". The Dryad makes the distinction between Corruption and Crimson if they are present in the same world, and will list their percentages separately, though they both contribute to the overall "bad" total in her final report. The status report is not updated live. This is presumably to reduce the slowdowns that could be caused by constantly searching through the millions of blocks in a Terraria world. The report can be manually updated by leaving and re-joining the world.
Quote	Appears When
"" 	The world has no Corruption, Crimson, or Hallow.
"" 	Corruption/Crimson and Hallow percentages are similar (0.8*good < bad < 1.2*good).
"" 	Corruption/Crimson and Hallow percentages are not similar, and the world has more Hallow than Corruption/Crimson.
"" 	Corruption/Crimson and Hallow percentages are not similar, and the world has far more Corruption/Crimson than Hallow (bad - good > 20%).
"" 	Corruption/Crimson and Hallow percentages are not similar, and the world has more Corruption/Crimson than Hallow, and there is very little Corruption/Crimson in the world (bad <= 10%).
"" 	Corruption/Crimson and Hallow percentages are not similar, and the world has more Corruption/Crimson than Hallow, and there is more Corruption/Crimson in the world (bad > 10%).
== Living preferences ==
== Shimmered form ==
== Tips ==
* Dryad's Blessing circle begins roughly 20 blocks from the Dryad, expands to a roughly 40 block radius, and briefly expanding to a 60 block radius before ending.
* For players creating housing for the Truffle, it would be beneficial to temporarily house the Dryad in or near a Glowing Mushroom biome where she will sell Mushroom Seeds.
** It is not necessary to build a house, a Queen Statue can be used to teleport her to a Glowing Mushroom biome.
** Another way on to bring the Dryad to a Glowing Mushroom biome is to use Boulders or Land Mines to kill the Dryad and invalidate all open housing except in the desired biome.
* Players can obtain items from both evils without using a different world by buying Corrupt or Crimson Seeds (Available while in the Graveyard minibiome) and making an artificial biome.
== Names ==
== Quotes ==
=== Interaction quotes ===
* ""
* ""
* ""
* ""
After defeating Old One's Army:
:Tier 1:
:*""
:Tier 2:
:*""
When Merchant is present:
* ""
When Arms Dealer is present:
* ""
When Truffle is present:
* ""
Before Skeletron is defeated:
* ""
In a Corrupt world:
* ""
:Before defeating the Eater of Worlds
:*""
In a Crimson world:
* ""
:Before defeating the Brain of Cthulhu:
:*""
Only during a Blood Moon:
* ""
* ""
* ""
* ""
When asking for the status:
* ""
* ""
* ""
* ""
* ""
* ""
* ""
(She will say Crimson or Corruption depending on which one there is, however, if both are present through an artificial biome, she will list both Crimson and Corruption percentages. She will add in the Hallow's percentage in Hardmode.)
Once the world is completely pure:
* ""
During a party:
* ""
During a :
* ""
* ""
During Rain:
* ""
* ""
During a Thunderstorm:
* ""
* ""
When in a :
* "" 
* ""
=== Happiness quotes ===
When homeless:
* ""
When far from home:
* ""
When in a sparse area:
* ""
When overcrowded:
* ""
* ""
When in the Jungle:
* ""
When in the Desert:
* ""
When in an Evil Biome or the Dungeon:
* ""
When near the Princess:
* ""
When near the Witch Doctor:
* ""
When near the Truffle:
* "
When near the Angler:
* ""
When near the Golfer:
* ""
When neutral:
* ""
== Trivia ==
* A is a nature spirit from Greek mythology, generally depicted as a beautiful young woman. Fittingly, many of the Dryad's possible names take inspiration from either classical literature (e.g. , , , ) or female celebrities.
** This might be the reason that the Arms Dealer appears to flirt with her as shown in one of his quotes, but she states in one of her quotes that she wishes the Arms Dealer would stop pestering her. In the same quote she reveals that she is 500 years old.
* The Dryad is depicted in a Painting called Dryadisque, which itself is a parody of the real-world oil painting .
* Her quote calling the Truffle a "fun guy" plays on the "".
* The quote "" is a possible joke about the fact that the Dryad could manipulate nature and hence appear as a tree.
** This could also be a reference to her not cleansing the world evil herself despite claiming that she fought the Old One's Army.
* One of the Dryad's quotes about the player's safety says "Terraria needs you", instead of "<Name of World> needs you", breaking the 4th wall.
* Her quote "" is a reference to (Dendrotherapy).
* Calista the Dryad is featured in the Terraria Comic Book from DC Comics.
* The appears in Dungeon Defenders 2. Her defenses include summoning Moss Hornets, Harpies, Slimes, and Angry Nimbuses.
* The Dryad's quote referencing her time in Etheria and her use of the corruption against the Old One's Army is a reference to her ability in Dungeon Defenders 2, where she can become a corrupted version of herself to do extra damage.
* 
** Despite this, like all NPCs, if the Dryad is killed and the spawn requirements are met, she will respawn. Re-Logic artist Jimmarn has speculated that she might be reincarnated.Terraria's 10th Anniversary: We are Re-Logic, Ask Us Anything! 
**The Guide's tip "You should prove yourself by defeating a strong monster. That will get the attention of a dryad." may or may not imply that there are still multiple concealed Dryads. However, given the tip predates the lore that specified having only one Dryad, 
* The name Nissa comes from the planeswalker Nissa Revane from the collectible card game Magic: The Gathering.
* According to Redigit, the Dryad "isn't actually wearing anything" and "the vines are a part of her body".
*The Shimmer Variant of the Dryad seems to reference her corrupt design from Dungeon Defenders 2.
**Her Shimmer Variant will not wear a party hat during a party, presumably due to the horns.
== History ==
== References ==