Direhorn Stallion

Trample, protection from deathtouch
If a Unicorn creature or a creature mounted on a Unicorn you control is targeted by a spell or ability an opponent controls, you may destroy a target non-land permanent an opponent controls and then create a 2/2 black Unicorn creature token.
Creatures mounted on Unicorns you control get +1/+1 for each Unicorn creature token you control.