Hiscoth, the Viashinobi

Dash {w}{r}{g}
{r}, Reveal Hiscoth, the Viashinobi from your
hand: Put a sand counter on target creature.
When Hiscoth, the Viashinobi enters the battlefield, creatures with sand counters can't
block this turn.
Hiscoth, the Viashinobi gets +1/0 for each
permanent with a sand counter on it.