There are so many great black cards that take some life, which you can offset with removal that provides lifegain
Sorcery Each opponent faces a villainous choice They exile cards from the top of their library until they exile a nonland card, then you may cast that card without paying its mana cost, or that player exiles the top four cards of their library and Ensnared by the Mara deals damage equal to the total mana value of those exiled cards to that player
I think you need a clearer vision for what you're wanting it to achieve, and then run a realistic (much lower) mana curve towards making that goal happen
According to TCGplayer , Aurora: Dreaming Guardian is worth roughly $199 , although that number would no doubt have been higher if the glimmering foil design had made Aurora's dress change from blue to pink based on the angle
Singularity Rupture Rating: 7/10 Six mana is quite a lot for a board wipe, but Singularity Rupture is still a board wipe at the end of the day
Giving every warrior on your team haste means that even freshly played threats can swing right away