Barad-dûr, the Dark Tower

When Barad-dur, the Dark Tower enters the battlefield, destroy two target nonland
permanents.
All orcs and nazgul you control get +1/+1.
{t}: Add {b} or {r} to your mana pool, then if you control The One Ring, you may transform
Barad-dur, the Dark Tower.
"Then at last his gaze was held: wall upon wall, battlement upon battlement, black tower of adamant,
he saw it: Barad-dur, Fortress of Sauron. All hope
left him..."