Powers and Stats
Tier: High 8-C
Origin: Fire Emblem
Gender: Male and female (they both exist at the same time in Future Past and they probably come from this timeline)
Age: Pre-Pubescent to Early Teens (younger than the rest of the cast)
Classification: Human with Grima's blood (canon), there are several other combinations (have Exalt Blood via Chrom, Lucina, or Lissa, Naga's blood via Tiki, Manakete's via Tiki or Nowi or Nah, Taguel via Yarne or Panne, be a descendant of Ike via Priam, etc)
Powers and Abilities: Superhuman Physical Characteristics, Can use Magic (Fire, Thunder, Wind), Expert Swordsman, Very good at improvising and a tactician on par with Robin, Can turn into a dragon via a dragonstone (Explained above) or into a Taguel via beaststone (Explained above)
Attack Potency: Large Building level (Comparable to other child units such as Owain and Nah, the latter of which should be comparable to her mother and the latter could match units, who could shatter large ice blocks)
Striking Strength: Large Building Class
Speed: Hypersonic (Comparable to Owain)
Durability: Large Building level
Range: Extended melee with swords. Tens of meters with magic. Hundreds of meters with certain magics (Bolting can strike someone from across the battlefield with cloud to ground lightning)
Weapons: Any kind of sword (except special ones) or tome (except dark magic)
Intelligence: As children, they're somewhat naive and immature, but are extremely fast learners and incredibly perceptive. By their last support with Robin they're on par with their parents in terms of strategical ability.
Weaknesses: Male Morgan is a little thick headed, Female Morgan is a little insensitive. Their weapons have limited durability and thus may break in the middle of battle.