Sandstorm Titan is a Unit.
How to Get Edit
Sandstorm Titan is a very powerful unit since its 5/6 stats are practically unmatched for the cost of 4 power. Its Endurance means it cannot be stunned to stop it from attacking or blocking (unless it is silenced ).
Titan is a good card to setup a solid endgame and prevent opponents without proper removal from getting otherwise free damage with Flying units.
Sandstorm Titan's ability also affects friendly Flying units.
Even though Flying units must attack and block as though they don't have Flying, it is not removed. Effects such as Windshaper's buff still affects them.
Units will be able to fly again when Sandstorm Titan leaves play or is silenced.
This effect is not stopped by Aegis, either on the units or on a player.
A popular nickname for this card is "Darude" after the popular song "Darude Sandstorm".  The card art used to feature a scarf but it was removed during the Beta. A common joke was to ask when it would get its scarf back. DWD referenced this meme in the flavor of the card Sandstorm Scarf.