I want to be clear that I'm asking will it be less to cast for its bestow cost, I know it won't help of its a creature
May 12, 2018 12:53 a.m.
This is correct. The gatherer text for Hero of Iroas states:
Hero of Iroass first ability will apply if you cast a card for its bestow cost.
More generally, when you cast a bestow creature for its bestow cost, it is no different than any other aura spell, subject to all the same effects and limitations.
May 12, 2018 1:17 a.m.
Wow well that makes my deck actually as cool as I thought thanks