Yeah, all elector counts vassals are called to war as allies. But that's not what he was saying. He said hochland has the tribal government form. Because if it's as you suggest it's easy to check that in game and there'd be no reason to post about it on our forums and waste time that could be devoted to fixing important bugs.
My other vassals can be raised by levies, i.e. Duchy of Tauben I can raise vassal levies. Why is Hochland different?
Those vassals are normal feudal vassals. Any imperial with a king tier title has a certain level of independence and can therefore decide whether or not they want to join your wars. Going by your name I assume you've been playing the AGOT mod and if I recall correctly you can't raise your lord paramounts' levies either and it is the same with the elector counts here.
I don't know about that. If my duchy is targeted by a holy war, I would definitely want to summon all my levies and command my army myself. And that's the problem here. If I actually have a stake in one of my liege's wars, I can't use spells while leading my own armies.
If you are called into a war you become a direct combatant and can cast spells all you want.
from_potential = {
NOT = { trait = incapable }
OR = { trait = vampire_lahmian_visible
trait = vampire_carstein_visible
# trait = vampire_blood_visible
trait = vampire_strigoi_visible
trait = vampire_necrach_visible
trait = vampire_jade_visible
trait = vampire_mahtmasi_visible
trait = vampire_lahmian_hidden
trait = vampire_carstein_hidden
# trait = vampire_blood_hidden
trait = vampire_strigoi_hidden
trait = vampire_necrach_hidden
trait = vampire_jade_hidden
trait = vampire_mahtmasi_hidden
trait = lore_necromancy }
OR = { trait = khemri_tomb_king
trait = creature_human }
NOT = { any_friend = { trait = mage_apprentice } } #just one at a time
}
potential = {
NOT = { character = FROM }
OR = { host = { character = FROM }
guardian = { character = FROM }
any_spouse = { character = FROM }
any_lover = { character = FROM }
any_friend = { character = FROM }
mother = { character = FROM }
father = { character = FROM } }
age = 16
OR = { trait = khemri_tomb_king
trait = creature_human }
NOT = { trait = mage_apprentice }
NOT = { trait = vampire_blood_hidden }
NOT = { trait = vampire_blood_visible }
NOT = { trait = incapable }
NOT = { trait = hedge_wizard }
NOT = { has_character_flag = taken_hedge_wizard_decision }
NOT = { has_character_flag = taken_necromancer_decision }
NOT = { has_character_modifier = apprenticeship_refused_necr }
NOT = { has_character_modifier = magic_power_1 }
NOT = { has_character_modifier = magic_power_2 }
NOT = { has_character_modifier = magic_power_3 }
NOT = { has_character_modifier = magic_power_4 }
NOT = { trait = king_settra }
}
allow = {
FROM = { learning = 14 }
}