Bridge of the Horned Twins

{t}: Add {1} to your mana pool.
{t}: Add {2} to your mana pool. Activate this
ability only if you control 5 or more lands.
{t}, Sacrifice this card: Create two 5/5 colorless
Horned Brother artifact creature tokens with
Vigilance. Activate this ability only if you
control 10 or more lands.