(: Add or to your mana pool.)
Rootbound Fountain enters the battlefield tapped.
: Rootbound Fountain becomes a 2/2 blue Cephalid creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.)
: Rootbound Fountain becomes a 2/2 blue Cephalid creature until end of turn. It's still a land.
