Since Tyrande is CC-chain-finisher again… Then yeah, Tyrande.
CC + armor debuff + multiple spell armors + Harsh Moonlight
What Ana is for Malganis, Tyrande will be for Orphea (except the synergy I guess)
The way I see it, heroes like Tracer will give her a run for her money.
Since her spells have a telegraphed delay tied to them. And her only mobility requires her to land that Q. Which is easily avoidable if you have some form of mobility.