Ilum

{t}: Add {c} to your mana pool.
{t}: Add {u} to your mana pool. Ilum deals one damage to you unless you control one or
more Jedi creatures.
{t}: Add {u} or {w} to your mana pool. Activate this ability only if you control three or more Jedi creatures.
Underneath it all, a locus of calm and enlightenment.