"There was a time when dreadful dragons ruled the skies. Their fire ravaged entire kingdoms, and their claws crumbled countless Cookies. An order of knight in shiny silver armor, infused with courage and battle prowess, swore to put an end to this threat. Led by Tea Knight Cookie, the knights courageously opposed the gargantuan monsters through fire and jam an remained in history. But even the most fragrant tea loses its aroma--with time, the glorious tale of the knight became a legend, a mere echo of the past. Tea Knight Cookie, the fearless hero, was forgotten by those he strove to protect. Now sadness and regret shadow his scar-ridden face. Perhaps he wanted to be forgotten...? Yet... when he reminisces the battles he fought side by side with his comrades of old, a spark lights up in his eyes: the flame within him still burns bright!"
Soulstone Description
"This stone holds a piece of Tea Knight Cookie's soul. The strong flavor with a hint of bitter undertones seems to inspire anyone close by."
Regular Attack
Cleaves all enemies in his range
Wrath of the Commander allows this attack to deal heavy damage per second
Skill
Battlemaster
Inflicts damage to the nearest enemy (targets Cookies first) and leads the battle on, providing a buff for his allies. There are several kinds of available buffs; each kind is applied to the Cookie meeting the required conditions. Whenever an allied Cookie is defeated, the Wrath of the Commander effect is triggered. Wrath of the Commander cannot be dispelled and stacks up to four times. At maximum stacks, Tea Knight Cookie will become resistant to interrupting effects.
18 second base Cooldown
Single hit DMG: 542.4% (+7.38% DMG per level)
ATK Increase: 6.0% for the two Cookies with the highest ATK for 8.0 sec
CRIT% Increase: 12.0% for the two Cookies with the highest CRIT% for 8.0 sec
For each stack of Wrath of the Commander: ATK 50.0%, ATK SPD 20.0%
Fourth stack of Wrath of the Commander: ATK 100.0%, ATK SPD 150.0%
Trivia
According to his loading screen trivia, "In the past, while he was making conspicuous achievements in the land of Beast-Yeast, Tea Knight Cookie has met with Hollyberry Cookie."
Tea Leaf Knight Helmet
Tea Knight Cookie's helmet can be seen in the Hollyberry Kingdom Section in the Guild Museum. This relates to Hollyberry Cookie offering him a title and land for his deeds, but being rejected by Tea Knight Cookie so he could continue to freely help Cookies.
Tea Knight Cookie's armor and chain-axe are likely modeled on a solid metal tea infuser ball.
Tea Knight Cookie's Korean name is "Ceylon Knight Cookie". It is currently unknown why his name was translated into "Tea", but it can be assumed that it was for culturally sensitive reasons.
Ceylon is the former name for Sri Lanka, a real life country. In the current day, the word Ceylon is mostly associated with Ceylon Tea, which is what Tea Knight Cookie was designed after.
Tea Knight Cookie's internal name is "cookie0532".
Tea Knight Cookie is also occasionally referred to as "taco knight" in the game's files.
Tea Knight Cookie's Korean voice actor, Choi Han, is best known for voicing Dainsleif from Genshin Impact, Hashirama Senju from the Naruto series and Mr. Krabs in the Korean dub of SpongeBob SquarePants.
Knight Cookie.
Eclair Cookie and the 
Insignia of the Indomitable Knights in the War Under Shattered Skies update (version 2.6.001). He is of the 
Charge class and his position is prioritized to the 
Front.
Hollyberry Cookie."
