Since there are always a lot of noncreature spells being cast, especially in Standard, having access to a counterspell on a body is fantastic, as it can act as both an attacker and blocker
You get to open two booster packs for free each day, though obviously you're then able to buy plenty more
If this card, which was Summoned this way, is destroyed by your opponent's card (by battle or card effect), and sent from your side of the field to your Graveyard, and both players have a hand: You can discard 1 card, then your opponent discards 1 card
Questionable Cuisine Safewright Quest Sequestered Stash Side Quest Sidequest: Card Collection Sidequest: Catch a Fish Sidequest: Hunt the Mark Sidequest: Play Blitzball Sidequest: Raise a Chocobo Unexpected Request Unquestioned Authority Valley Questcaller Vision Quest Zimone, All-Questioning
The controller wants to defeat the Siege, because once the Siege's last defense counter is removed, it is exiled, and its controller gets to play its reverse face for free
One of these is being able to Retreat your Pokemon