Tap enchanted creature: This Aura deals 1 damage to any target
Chittering Host gives your other creatures +1/+0 and menace when it transforms and has haste and menace itself
in practice, this often costs less than 7 mana, assuming you have a good attack the turn you play it
After all, it's hard to argue against the assortment of shiny Legendary Pokemon you'll find, including Lugia, Kyogre, Rayquaza, Groudon, Ho-Oh, Deoxys, and Suicune just to name a few
All of these spells, while suited to Sigarda in particular, are all playable outside of Enchantress
I cant really imagine who the casual audience would be for Standard, how anyone would get into it, or why theyd stay with it rather than graduating to other formats