(: Add or to your mana pool.)
Arid River enters the battlefield tapped.
, : Target land becomes a 2/2 white Knight creature until end of turn. It's still a land.
, : Draw a card, then discard a card.
: Add 
or 
to your mana pool.)
, : Target land becomes a 2/2 white Knight creature until end of turn. It's still a land.
, : Draw a card, then discard a card.
