Iron crown lootboxes

[I_need_R3O1_pls]

Hello,

now when Iron crown event is released, I am considering spending some money for the lootboxes. I have already paid enough money  to this game and I will be close to the 500 limit of getting Wraiths heirloom. So I am asking myself, just to know, if my money are worth it, because to be honest, Iron Crown lootboxes are kinda overpriced ... So do these event lootboxes count as normal lootboxes to that 500 limit? Thank you for every answer and thoughts.