Flashback Snapcaster Mage without a body, this one mana red spell is supremely flexible, and really strong
For those players, the set was too bleak and icky, and they wished the set wasn't quite so monolithic in its overall feel. Here's one highlight from The Brothers' War: Many players liked having a set that looked back at one of Magic's greatest stories
You want to store up unspent mana in advance, otherwise Ozai is a literal lightning rod for removal
Failing that, suggesting that they just say "go" is acceptable
This includes Magcargo (Fire), Greninja (Fighting), Dragapult (Dragon), and the four Ogerpon ex
Remote Isle and other cycling lands can be helpful in the late game when you've got plenty of lands