The stat increase that can be applied by Vision of Arcadia is considered a bonus.
Any 【Bonus】 on a unit, including bonuses, lasts until the start of that unit's next phase. If bonuses are acquired during the enemy phase, they will disappear when the next player phase begins.
Vision of Arcadia does not compare Atk+Def total stats.
Because no comparison is made, skills like Phantom Spd 3 have no effect.
Unit selection takes place after all bonuses on allies are removed, and before any new bonuses or penalties are applied. All other existing bonuses and penalties count towards their respective stats during unit selection.
If multiple units are tied for the highest Atk+Def total, each of those units will receive the effect.
The Japanese name for this skill is a direct quote referencing one of Eliwood: Blazing Knight's status page lines in which Eliwood wishes for a utopian world where humans and dragons can live together.
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