Mask of Memory remains one of the better options for card draw for decks not in green or Simic, and I love putting it on small evasive beaters
The flexibility of being able to choose a value for X is great because we might have an early-game case of wanting (or needing) to cast it for X of one or two, or we can wait until late-game and sweep a much bigger battlefield
The blue creature Maeve, Insidious Singer has a very silly name, and uses Wizards' new favourite Commander mechanic, goad
After seeing popular Eldrazi creatures top the price list from previous sets, this doesn't come as much of a surprise
Its a natural fit for artifact-heavy decks, where artifact token makers or resilient pieces like Darksteel Citadel become huge threats that swing in every turn
, : Put target creature card exiled with The Darkness Crystal onto the battlefield tapped under your control with two additional +1/+1 counters on it