(: Add or to your mana pool.)
Academy Clump enters the battlefield tapped unless you sacrifice an artifact.
: Academy Clump becomes a 2/1 blue and green Faerie Shapeshifter creature until end of turn. It's still a land.
: Add 
or 
to your mana pool.): Academy Clump becomes a 2/1 blue and green Faerie Shapeshifter creature until end of turn. It's still a land.
