+Sandstorm (7)
Desert Sandstorm deals 1 damage to each creature.
Sandstorm deals 1 damage to each attacking creature.
Megamorph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)
, Sacrifice Sandstorm Eidolon: Target creature can't block this turn.
Whenever you cast a multicolored spell, you may return Sandstorm Eidolon from your graveyard to your hand.
When Sandstorm Salvager enters the battlefield, create a 3/3 colorless Golem artifact creature token.
, : Put a +1/+1 counter on each creature token you control. They gain trample until end of turn.
: Add .
, : Target creature can't block this turn. Activate only as a sorcery.
Threshold — Swirling Sandstorm deals 5 damage to each creature without flying if seven or more cards are in your graveyard.
Gatherer works better in the Companion app!
, 
: Put a +1/+1 counter on each creature token you control. They gain trample until end of turn.