I was going to tag this as useless, which I supose would make it against the rules of this section, but i'm sure that many people don't know this and someone will gain from it.
As you may know, the Noblegarden event allows players to recieve an item called Blossoming Branch. While someone has the blossoming branch buff active, they cannot cast spells. which also means that if they are buffed with it while they are casting, then it will interupt the spell.
So for those of you who didn't understand my point - Use the blossoming branch on people in BGs to interupt their spellcasting!
I really don't think i need screenshots... but if you request them i will get them.
Tranquility [X]
EDIT: Just a theory, would be great if someone could test: would this item make you immune to polymorph?
EDIT: 1k VIEWS! 4 people replied.... seriously!?