It still would have to deal with frail defenses and very lackluster offenses.
651 HP / 127 Def / 96 SpD are really bad defenses, not to mention it's slow. If you're still thinking Wonder Guard, it still doesn't work that well because Knock Off is on like 90% of teams.
Here's something interesting. What if Altaria was Dragon/Fairy instead of Dragon/Flying? For reference, here's the new weaknesses and resistances for it.
Weak to: Fairy, Ice, Poison, Steel
Resists: Bug, Fighting, Dark, Water, Grass, Fire, Electric
Immune to: Dragon
651 HP / 127 Def / 96 SpD are really bad defenses, not to mention it's slow. If you're still thinking Wonder Guard, it still doesn't work that well because Knock Off is on like 90% of teams.
Here's something interesting. What if Altaria was Dragon/Fairy instead of Dragon/Flying? For reference, here's the new weaknesses and resistances for it.
Weak to: Fairy, Ice, Poison, Steel
Resists: Bug, Fighting, Dark, Water, Grass, Fire, Electric
Immune to: Dragon