Sareban, Veteran Camel-Driver

When Sareban enters the battlefield, you may
search your library for a basic land card or a
Desert card, reveal it, and put it onto the
battlefield tapped. If you do, shuffle.
{x}: Choose up to twice X non-Human creatures
you control. They each gain flying until end of
turn if at least one of them has flying. The same
is true for first strike, double strike, vigilance,
indestructible, lifelink, deathtouch, menace,
haste, reach, trample, and hexproof.