[ Snivy heard that 'he' slip out and still not very happy with you Sokka. But maybe she'll warm up to you in time. Maybe. ]

I guess? I dunno how it works in your world but 'cause Snivy is a grass type she uses mainly grass moves. But Pokemon can learn moves that aren't they're type too. Like Charizard. He's a Fire and Flying type but he knows Dragon Tail, a Dragon Type move. Pikachu here knows Iron Tail, a Steel type move. And all Pokemon can learn different kinds o' Normal type moves.