Tip
Senna’s (Q) is useful to contest lane while the rooting effect on her (W) makes it difficult to close in on her. Use [Q] to contest lane, and play defensively if enemy bottom and support are stronger.
Janna vs Senna

Senna’s (Q) is useful to contest lane while the rooting effect on her (W) makes it difficult to close in on her. Use [Q] to contest lane, and play defensively if enemy bottom and support are stronger.