Sandslash

You may sacrifice a creature named Sandshrew rather than pay this spells mana cost.
When Sandslash enters the battlefield, it explores.
Protection from sources that cost {e},
Sandslash has first strike and flanking as long as
the defending player this turn controls a Desert.
Whenever a creature attacks or blocks Sandslash, that creature gets -0/-2 until end of turn. {g/w}{g/w}, {t}: Target player's tapped creatures
without flying get -X/-X until end