So long as Myrel is in play, your opponent cannot cast spells or activate the abilities of artifacts, creatures, or enchantments during your turn
Pre-orders for this collection, which is print-on-demand for a limited time, are now open on the main Secret Lair site
Acceleration Creatures One mana is a big casting cost for green
On the other hand this seems like a very polished list and you probably know by now if aerie is actually good or not :) Coat of Arms is another possible finisher
However, there are a few solid cards included in this deck list, including the highly effective Dual-Ink Giant Cobra character which is currently Amethyst/Steels Dual-Ink card of choice
Modern Horizons 3 is getting released very soon, and as you might expect, a ton of extremely powerful cards will be joining the Modern format