Wanderer of the wastes

Wanderer of the wastes cannot be cast
unless you control {8} or more lands.
This spell cannot be countered.
When Wanderer of the wastes enters the
battlefield all human creatures you control
have Doublestrike and Indestructible.
Put a +1/+1 counter on Wanderer of the
wastes for each land the enters play under
your control.