Originally Posted by IvanLedah21

Some good abilities to look for:

Damage taken from small pests -50% (Examples: Toad Lily, Japanese Iris)
Heal on Pest Node (Examples: Edelweiss (current revival event unit), Leucocoryne)
Enemy Attack Down (Examples: Cherry Sage, Dahlia)
Team Skill Activation Rate Up (Examples: Justicia, Cymbidium)

Dodge chance (Examples: Waterlily, Setaria)
Counter Chance (Examples: Rose, Snapdragon)

Last two are less great but still solid. Failing these, Attack Up > Defense Up (unless you have a Counter-heavy group or combo Defense Up with Enemy Attack Down)

Pest nodes won't be as plentiful going forward, so those first two shouldn't be a priority. The rest of those abilities combine well with lifesteal attacks.