You'll want to surround it with other token-making coin-flip cards like Molten Rebirth and Mirror March in this build
Prismari Command is a less efficient way to remove an early mana dork or rock than Burst Lightning or Shatter, but it does so much more
card: it delivers negation, protection, and win pressure all in one monster, with minimal support needed
Of course, all of this depends on the power level of your playgroup, but were not sure Sefris is doing enough, what with them being limited to one venture per turn
Sire of Seven Deaths counts vigilance as one of its seven abilities, which puts first strike, reach, and lifelink on display for blocking and when you take the ward cost into account, this turns into a 14-life swing or better
Unlike Rambling Possum, the creature that saddled Fortune will return to the battlefield and not to your hand