Tamamo able to have Shackle ability without using Mantra

[gelguy]

This is done by spamming F (to open and close spellbook). Due to Dota 2 engine's queuing of abilities, it is possible that at some point, your spellbook is open when the Open Spellbook spell is cast.

	if caster:GetAbilityByIndex(2):GetAbilityName() == "tamamo_mantra" then
		a3 = caster:FindAbilityByName("tamamo_mantra") -- Mantra
	else
		a3 = caster:FindAbilityByName("tamamo_mystic_shackle")
	end

fateanother/game/dota_addons/fateanother/scripts/vscripts/tamamo_ability.lua

Line 31 in bf44cdb

if caster:GetAbilityByIndex(2):GetAbilityName() == "tamamo_mantra" then

The check then finds that Ability 2 is E charm and not the expected Mantra, and then sets a3 as Shackle. Shackle is then swapped with E charm. On closing spellbook, E charm is swapped with Mantra and since Shackle is in E charm's position, Shackle becomes your 3rd ability.

[gelguy]

Fixed by 8352f4b.