As such Mystic Confluence is generally on par with the cube power level of cost to return (assuming you don't have to repeatedly Mana Leak the same target)
After the process stops, the total amount of life each player paid this way is calculated
You can see my own unboxing video for the Precious Collector Box on my YouTube channel, but unfortunately, my video is in Bahasa Indonesia so you may want to turn on the Auto CC
Then when you cast your first enchantment each turn you draw a card, so she is a Vesuvan Enchantress in the Command Zone but just once
Then the instant will draw you and a foe two, it's a common for Pauper, Peasant and Pauper Commander and then you can normally cast this for three and save your team by giving them indestructible for the turn to stop targeted or mass removal or to save blockers
At the beginning of your end step, create a 5/5 green Wurm creature token