The player can keep or mulligan following official London Mulligan rules
When to Be Flexible As I mentioned, there are many players who argue against definitive sideboard plans
Entering the battlefield with two additional bodies is slight overkill for Celebration triggers, so this card is most efficient for Rat sacrifice builds and might get bulked up into a semi-evasive finisher, something every "aristocrat" deck needs
(They each put the top card of their library into their graveyard.) Legendary Creature - Human Knight Drain (CTRL to add secondary) Draw Gonti, Lord of Luxury Deathtouch When Gonti enters, look at the top four cards of target opponent's library, exile one of them face down, then put the rest on the bottom of that library in a random order
II - Zentetsuken - This creature gains "Whenever this creature deals combat damage to a player, that player loses the game." III - Hall of Sorrow - Draw two cards
As you continue to venture deeper into the dungeon, you will often be offered a choice of which room and triggered effect you want to choose next: Until finally you reach the end of the dungeon, completing it