[5092] Update on Upcoming Event, New Hero + New Arcana

Aghanim's Labyrinth 2
New strings in Update 5092 – https://pastebin.com/KvA1vKFm
New Boss – primal_beast_boss
Added – sand_king

New Hero – Primal Beast

particles/units/heroes/hero_primal_beast/primal_beast_tantrum_active.vpcf
particles/units/heroes/hero_primal_beast/primal_beast_tantrum_overhead.vpcf

New Arcana – Drow Ranger

dota_drow_ranger_arcana_disable_display
dota_drow_ranger_arcana_progress_delay
dota_drow_ranger_arcana_progress_linger_duration
file://{resources}/layout/drow_ranger_arcana_progress.xml
file://{resources}/layout/hud/dota_hud_drow_ranger_arcana.xml

P.S. "We've got a special conundrum cooking and we can't wait to share it." – Valve
Bird for Thanksgiving Day?
primal_beast and bird_samurai was ones from 23 unreleased heroes in Update 4637
Heroes – https://pastebin.com/0VQVSvMT
Abilities – https://pastebin.com/3Sfw2Ehg