![Return to Ravnica: Tower Drake](/img/cards/return-to-ravnica/rtr-tower-drake-55.jpg)
Tower Drake | Creature | Drake | Flying
{W}: Tower Drake gets +0/+1 until end of turn. | Ryan Barger
![Return to Ravnica: Detention Sphere](/img/cards/return-to-ravnica/rtr-detention-sphere-155.jpg)
Detention Sphere | Enchantment | | When Detention Sphere enters the battlefield, you may exile target nonland permanent not named Detention Sphere and all other permanents with the same name as that permanent.
When Detention Sphere leaves the battlefield, return the exiled cards to the battlefield under their owner's control. | Kev Walker
![Return to Ravnica: Lyev Skyknight](/img/cards/return-to-ravnica/rtr-lyev-skyknight-179.jpg)
Lyev Skyknight | Creature | Human Knight | Flying
When Lyev Skyknight enters the battlefield, detain target nonland permanent an opponent controls. (Until your next turn, that permanent can't attack or block and its activated abilities can't be activated.) | Johannes Voss
![Return to Ravnica: Sphinx's Revelation](/img/cards/return-to-ravnica/rtr-sphinx-s-revelation-200.jpg)
Sphinx's Revelation | Instant | | You gain X life and draw X cards. | Slawomir Maniak
![Return to Ravnica: Vassal Soul](/img/cards/return-to-ravnica/rtr-vassal-soul-224.jpg)
Vassal Soul | Creature | Spirit | Flying | Dan Scott
![Return to Ravnica: Azorius Keyrune](/img/cards/return-to-ravnica/rtr-azorius-keyrune-225.jpg)
Azorius Keyrune | Artifact | | {T}: Add {W} or {U}.
{W}{U}: Azorius Keyrune becomes a 2/2 white and blue Bird artifact creature with flying until end of turn. | Daniel Ljunggren