This time, though, Shalai and Hallar can be your commander, which means you only need to find one other card, usually something White that has scary words like "whenever" and not "this only triggers once per turn." White has a lot of ways to gain life, which puts counters on things, which triggers things that happen when things get counters put on them, which deals damage and then it loops until they get big mad that they lost to a topdecked Ajani's Pridemate and stop coming to your house
Fellwar Stone is an excellent signet thats no different from Arcane Signet in the majority of multiplayer games
Not much going on
Its a brilliant move, as it picks up on de Lempickas themes of Feminist liberation and Deco-era glamour and applies them to an idealization of the Cruella character
If you can't do either and have no third creature already then you'll need an extra B: you'll need to activate Phantasmagorian two additional times (holding priority) to discard 6 non-combo cards to delve Sibsig Muckdraggers for B, returning a non-combo creature to hand
Mana rocks can sometimes become irrelevant later in the game when you have a higher land count, so having a rock with utility is great