Akroma, Angel of Fury
Legendary Creature — Angel
This spell can't be countered.
Flying, trample, protection from white and from blue
: Akroma gets +1/+0 until end of turn.
Morph 
(You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)
Randy Vargas
Secret Lair Drop (SLD)
• #1287Rulings
In a Commander game where Akroma is your commander, you may cast it face down from the command zone by paying {3} plus {2} for each time it has been cast from your command zone. The cost to turn it face up is unaffected. While face down, the combat damage it deals is still counted as damage dealt by your commander.
(wotc • 2021-03-19)
If Akroma, Angel of Fury is cast face down, it can be countered.
(wotc • 2021-03-19)
A spell or ability that counters spells can still target Akroma. When that spell or ability resolves, Akroma won't be countered, but any additional effects of the countering spell or ability will still happen.
(wotc • 2021-03-19)
Printings
Rulings
In a Commander game where Akroma is your commander, you may cast it face down from the command zone by paying {3} plus {2} for each time it has been cast from your command zone. The cost to turn it face up is unaffected. While face down, the combat damage it deals is still counted as damage dealt by your commander.
(wotc • 2021-03-19)
If Akroma, Angel of Fury is cast face down, it can be countered.
(wotc • 2021-03-19)
A spell or ability that counters spells can still target Akroma. When that spell or ability resolves, Akroma won't be countered, but any additional effects of the countering spell or ability will still happen.
(wotc • 2021-03-19)