This spell can't be countered.
Flying (This creature can't be blocked except by creatures with flying or reach.), trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.), protection from white and from blue (A permanent or player with protection can't be targeted, enchanted, equipped, fortified, damaged or blocked by sources of the given property.): Akroma gets +1/+0 until end of turn.
Morph (You may cast this face down as a 2/2 creature for . Turn it face up any time for its morph cost.)