Ok so this is impractical but I think it'd be an interesting idea.
{Wound Reflection}
+ {Havoc Festival}
If you could either get a ton of mana somehow or reduce mana costs some way
It'd get pretty crazy.
Crypt ghast and liliana's shade. Those help me a lot in my black deck for mana :D
{crypt ghast} {liliana's shade}
Or that {Lilianna of the dark realms} emblem always works
U suppose with a shed-load of control and removal and a bunch of clue stones (rackdos, dimir, orzhov and golgari - 12 to 16 in the deck), you could ramp up faster and use the card draw?