New strings in Update 5006 –
New strings in Update 5072 –
All strings –
Bosses:
arc_warden_boss
tusk_boss
boss_earthshaker
treant_miniboss
Point of note:
modifier_aghsfort_primal_beast_no_cc
primal_beast was one of the 23 unreleased heroes in Update 4637
Heroes –
Abilities –
Credit to u/muk_as who has data-mined this info
Source: https://www.reddit.com/r/DotA2/comments/qi1z3w/data_mining_upcoming_event_aghanims_labyrinth_2/