Sakashima's Student [The List] archway which opens up three possibilities:

which opens up three possibilities:

There is a 55-card Action deck and a 55-card Investment deck

Purgatory House is a pick-up and play

Set: Champs and States Type: Instant Rare Cost: {G}{U}{U} Counter target spell

Sakashima's Student [The List] archway which opens up three possibilities:Set: The List Type: Creature Human Ninja Rarity: Rare Cost: {2}{U}{U} Ninjutsu {1}{U} ({1}{U}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.) You may have Sakashima's Student enter the battlefield as a copy of any creature on the battlefield, except it's a Ninja in addition to its other creature types.