Dragonlord Silumgar is Sower of Temptation on steroids
The Glorious Anthem, on Ravos grants you another whole round of value from persist creatures like Kitchen Finks, Kithkin Spellduster, and Heartmender
It's by all reasonable metrics a fully functional planetary system, scaled down for easier study."
As you're casting cards from exile, Mizzix, Replica RiderMizzix, Replica Rider, NalfeshneeNalfeshnee, and Wild-Magic SorcererWild-Magic Sorcerer would be great additions for this commander and allow you to gain even more value off of your opponents' spells you cast
There are some cards that work well with it, like Hourglass of the Lost, The War Doctor, Rose Tyler, or As Foretold, not to mention some vanishing cards
If your creature then dies, this makes no difference