Horizon Scrub enters the battlefield tapped unless you pay .
: Add to your mana pool. Return Horizon Scrub to its owner's hand.
: Horizon Scrub becomes a 0/4 white and black Knight creature with defender until end of turn. It's still a land.
.
: Add 
to your mana pool. Return Horizon Scrub to its owner's hand.
: Horizon Scrub becomes a 0/4 white and black Knight creature with defender until end of turn. It's still a land.
