: Add .
: Desert deals 1 damage to target attacking creature. Activate only during the end of combat step.

(: Add .)

Flying

Whenever Nafs Asp deals damage to a player, that player loses 1 life at the beginning of their next draw step unless they pay before that draw step.

Sandstorm deals 1 damage to each attacking creature.

Enchant creature
Enchanted creature gets +3/+3.
At the beginning of the upkeep of enchanted creature's controller, put a -1/-1 counter on that creature.

First strike

Banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)
As long as Camel is attacking, prevent all damage Deserts would deal to Camel and to creatures banded with Camel.

Kird Ape gets +1/+2 as long as you control a Forest.

: Target creature can't be regenerated this turn.

At the beginning of your upkeep, if a player has more life than each other player, the player with the most life gains control of Ghazbán Ogre.

As an additional cost to cast this spell, sacrifice a creature.
Add X mana of any one color, where X is 1 plus the sacrificed creature's mana value. Spend this mana only to cast creature spells.

Giant Tortoise gets +0/+3 as long as it's untapped.

: Target creature gets +1/+1 until end of turn.

At the beginning of your end step, if Erg Raiders didn't attack this turn, Erg Raiders deals 2 damage to you unless it came under your control this turn.

Dandân can't attack unless defending player controls an Island.
When you control no Islands, sacrifice Dandân.

: Cuombajj Witches deals 1 damage to any target and 1 damage to any target of an opponent's choice.

Whenever Hasran Ogress attacks, it deals 3 damage to you unless you pay .

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)
Enchanted creature has islandwalk. (It can't be blocked as long as defending player controls an Island.)

When Oubliette enters, target creature phases out until Oubliette leaves the battlefield. Tap that creature as it phases in this way. (Auras and Equipment phase out with it. While permanents are phased out, they're treated as though they don't exist.)

Attacking creatures get +2/+0 until end of turn.

Flying

Blocking creatures get +0/+3 until end of turn.

Desertwalk
Prevent all damage that would be dealt to Desert Nomads by Deserts.

Trample

Trample; banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

When Rukh Egg dies, create a 4/4 red Bird creature token with flying at the beginning of the next end step.