Unholy Wolf Hex

Cast this spell only during a first main phase.
Target creature gains Scar and gets +X/+Y until
end of it's controller's next turn, where X is its
power and Y is its toughness.
The creature must attack each turn if able. At the
beginning of the creature's controller's next end
step, destroy that creature if it attacked this turn.
"When they say Beasts must be slain, force
your for into being one." - Witch Wisdom