I think they can be ok at times, but when they're 2-part combos with the commander as one half of the equation, it often becomes inappropriate for a casual game
Well have to wait and see how they end up playing, but I dont see them holding this price
The Aether Heart is a one-shot effect, but that effect is what might be the 7 most powerful worlds in Magic, Take an extra turn after this one. And just like the Marvel, it can sit around on the board for a while while generating energy, making using that effect far easier
It is White Magic and first available at level 18
This makes me question its inclusion
Activate it, and each player draws a card