Ooziras Stronghold

{t}: Add {1}. Add 1 mana of any color instead if
you control Oooziras Watchtower, Ooziras
Magetower and Ooziras Fortress.
{4}: Create a 2/2 green Ooze creature
with haste. Exile it at the end of turn.
If you control Oooziras Watchtower,
Ooziras Magetower and Ooziras Fortress,
the activation cost of Oooziras Stronghold
abilities is reduced by {2}.