Sandworm, Wormriders

When Sandworm, Wormriders dies, create
seven 1/1 white Fremen Fighter creature tokens.
Wormriding is usually done by prying open a scale
from a sandworm and putting sand into it, usually
with a maker hook. Irritated, the worm will turn to
put the exposed scale upwards, not submerging its
body until the scales were back in place.