Forerrunners of the Storm

Chase- When Forerunners of the Storm or another Stormchaser enters the battlefield under your control, put a 3/3 green and black Elemental creature token onto the battlefield under your control.
As long as you control 5 or more Elementals, Stormchasers you control have haste, first strike or hexproof. (When this ability triggers, choose one. You may choose again at the beginning of each upkeep.)
Nothing can outrun the storm. That doesn't stop them from trying.