Anemo support healer, catalyst, [she] can work with Xiao, but probably counts more as a general support, [she] has off-field utility, [her] healing is on Q, [she's] a Kuki Plus*, heals while dealing damage, low healing amounts, [her] Q has a pretty large range and can Swirl, [she] has high ER requirements, [her] Q doesn't generate particles, [her] E is extremely useful in the overworld and she can fly
Her %dmg increase is in her artifacts, her BiS solves her ER problems, [she] gains stacks when allies' HP fluctuates, and [she] consumes stacks to reduce defense when attacking enemies
It's too early rn, this is all I know atm
translated from here
*The "Plus" suffix usually is made to emphasise the comparability of two character's kits to each other. Examples: Kokomi sometimes referred to as Barbara Plus.