Its hard not to get a smug look on your face as you realise what devastation you can cause
That doesn't mean that Wedding RingWedding Ring isn't workable, however
To me, it's a less interesting Tempt with Reflections (talking strictly in a FFA game), and any way I look at it this sorcery seems overcosted: Cackling Counterpart and Fated Infatuation are instant speed token makers for 3 cmc, and if we upgrade them to Zndrsplt's Judgment I don't see it being worth it as a 5 mana sorcery
The cost reduction is important for a tribe that specializes in expensive Creatures
Backgrounds can be found as Common, Uncommon, and Rare cards
Considering that you'll open one copy of Heliod, Sun-Crowned roughly every 3.5 booster boxes, this means that the supply of the Secret Lair version of Heliod, God of the Sun (again, based on our estimate) is roughly the equivalent of 175,000 booster boxes of Theros being opened (at $100 a box, about $17.5 million dollars worth of boxes)