Black Lion Daily Herald - Zephyrite Supply Box has some wicked rewards including some of the rarest infusions in the game! :O It looks to be a huge material sink, though, to
Request] Chak Egg Sack effects video : r/Guildwars2
Guild Wars 2 Forum - Guild Wars 2: Heart of Thorns
GW2 Chak Egg Sac effects - YouTube
Grand Lightning Catcher combined with Confetti, Chak egg sac, Quee Bee and Aurora : r/Guildwars2