Aino applies Hydro consistently off-field through her abilities, making her a strong enabler for Electro-Charged and Freeze teams. Pair her with main DPS characters that benefit from sustained Hydro application, such as Electro carries or Cryo on-field units. Build with Hydro damage, Energy Recharge, and attack on a 4-piece Emblem of Severed Fate or similar off-field damage set, prioritizing consistent ability uptime.