Yes, it's a little mana-intensive at pretty much three mana per activation, but the ability to cast anything at sorcery speed while only taking up a land slot is absolutely huge
We've updated this guide to include more information about promo cards and how to obtain them, as well as new information about the Illumineer's Quest cards
The Theros gods can be targeted by anything with enchant enchantment, like One with the Stars
There's great examples at higher rarities of this, like Restorative Magic and Fire Magic both being excellent at their base level and get better at higher levels
We imagine this will be the same with other cards in the set, but cant confirm
With a 3/4 body, as long as you control two or more other Merfolk this creature has indestructible, making it quite hard for your opponents to remove it from play