Emberweaver, Watchful

When you cast Emberweaver, put a 1/1 White Youngling Fox onto the battlefield.
So long as you control a 1/1 White Youngling
Fox, Emberweaver has -4/+4 and defender.
At the beginning of your upkeep, if you don't
control a 1/1 White Youngling Fox,
Emberweaver deals 5 damage to any target