Hello again! I just received your deck a couple of days ago. I began to slowly delve into the mechanics. I may be wrong, but as far as I understand, griffins only make auras cheap. In this build, only
On Thin Ice has aura subtype. Perhaps older cards have it by default, correct if I'm wrong. I also find it a good idea to add
Leyline of the Void to the sideboard, since from the answer to the graveyard we only have
Kaya's Guile. As a result, it seems to me that I need to find another flying 2 drop instead of a griffin, if other enchantments do not have a subtype of aura.