Azerverl, Soul of Sands

Each land is a Desert in addition to its other types
Activated abilities of other lands you control cost {2} less to activate. This effect cannot reduce
the mana in that cost to less than 1 mana.
{t}:Add {c}
{4}{c}:Azerverl, Soul of Sands becomes a 2/2 Elemental God creature with indestructible until end of turn.