FlyingWhen Siege Dragon enters, destroy all Walls your opponents control.Whenever Siege Dragon attacks, if defending player controls no Walls, it deals 2 damage to each creature without flying that player controls.
Flash (You may cast this spell any time you could cast an instant.)FlyingWhen Quickling enters, sacrifice it unless you return another creature you control to its owner's hand.
Other white creatures you control get +1/+1., : Another target white creature you control gains vigilance until end of turn. (Attacking doesn't cause it to tap.)
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)Target creature gets +1/+0 and gains first strike until end of turn. (It deals combat damage before creatures without first strike.)
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)Covenant of Blood deals 4 damage to any target and you gain 4 life.
At the beginning of combat on your turn, if you control each creature on the battlefield with the greatest power, gain control of target creature an opponent controls until end of turn. Untap that creature. It gains haste until end of turn. (It can attack and this turn.)
Jorubai Murk Lurker gets +1/+1 as long as you control a Swamp.: Target creature gains lifelink until end of turn. (Damage dealt by the creature also causes its controller to gain that much life.)
Hexproof (This creature can't be the target of spells or abilities your opponents control.): Until end of turn, Xathrid Slyblade loses hexproof and gains first strike and deathtouch. (It deals combat damage before creatures without first strike. Any amount of damage it deals to a creature is enough to destroy it.)
Flying: Draw a card for each color among permanents you control., Exile Soul of Ravnica from your graveyard: Draw a card for each color among permanents you control.
Sliver creatures you control have "When this creature enters, you may exile target creature an opponent controls until this creature leaves the battlefield."
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)When Living Totem enters, you may put a +1/+1 counter on another target creature.
