Anthousa, Savior of Setessa

Anthousa, Savior of Setessa enters the battlefield with {x} +1/+1 counters on it.
When Anthousa, Savior of Setessa attacks, untap
X lands, where X is the number of +1/+1 counters on Anthousa, Savior of Setessa.
Felling the Pheres-Band champion and routing their army is but one of many tales told of the Savior of Setessa.