Illuin and Ormal

When Illuin and Ormal enter the battlefield, add
X mana in any combination to your mana pool
where X is the number of lands you control.
Mana does not empty from your mana pool as
steps and phases end.
{7}: Permanents you control gain hexproof, indestructible and lifelink until end of turn.
"One lamp they raised in the North, and it was
named Illuin; and the other was raised in the south,
and it was named Ormal."