Lillia, Bashful Bloom

First strike

When Lillia enters or deals combat damage create a Bough artifact.

Level up - When 15 or more non-land permanents enter
the battlefield under your control give Lillia +1/+1 and "When you sleep a creature you control, immediately wake it up and give it a spirit counter".

Spirit 1 - Lillia has +1/+1 for each spirit counter on her.