Fumikage Tokoyami

Deathtouch, Flying, Hexproof
If an opponent controls one or more white creatures, Fumikage Tokoyami is 3/3 and gains defender for as long as that creature(s) are on the battlefield. If you control one or more black creatures other than Fumikage Tokoyami,
Fumikage Tokoyami is 5/5 and must attack each
combat if able as long as that creature(s) is on the battlefield. Whenever Fumikage Tokoyami blocks
or attacks, destroy target nonwhite creature an
opponent controls.