She gets stronger for each arrow in her quiver (mechanically represented here as Equipment) and can remove them to "shoot" at another creature in combat
P/T Number 207a Language English Legal Formats Alchemy, Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pioneer, Standard, Timeless, Vintage Rulings (10/2/2025) An ability that triggers "whenever you waterbend" triggers whenever you pay a waterbend cost, regardless of how you paid that cost
The tutorial battle isnt simply a mirror match, which is a nice touch, and employs some modified rules to make things easier to digest
Near-Death Experience Lands ravaged, cities in ruins, so many lives sacrificed, and yet there was no other word for it but victory