From Fire Emblem Fates, the eldest Nohrian son sports high Atk and Spd, good Def, and quite low Res... which to be fair is pretty accurate, but he packs advantages to make even the toughest foes put in the work to fell him: If he begins his phase near two allies, he gains the effects of [Null Follow-Up] and accelerated special charge. If he initiates combat or is near an ally he gets all stats +5 and post-combat HP recovery. If his opponents HP is over 50% he inflicts Atk/Spd/Def -5 on them. He gains damage reduction based on half the percentage of his foes remaining HP, up to 50% when the enemy is at full health. He gets Canto (Rem +1). So... yeah you'll be putting in some work to put him down.
He who has embraced the dark he calls home, he who has gazed upon the empty white throne, who has fought the legacy of lies, against the familiar disguise... that is your foe.
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