Rizzo, Trick Rider

Haste
Rizzo enters the battlefield mounted to a 2/2
white horse mount creature token with "Rider
gets +1/+1 and Vigilance. Mount {2}." Whenever blockers are declared during your turn, you may
have Rizzo dismount. If you do, remove its
mount from combat: Rizzo gains indestructible
until end of turn and deals damage as if it
weren't being blocked.