Here's a rough breakdown based on the default configuration (13 cards/batch, 20 batches/set) and approximate API pricing at the time of writing
Getting enchantments is also huge, considering heavily-played cards like Underworld Breach and strong enchantment creatures
If you cast a spell with freerunning this way, you'll pay its mana cost, not its freerunning cost
At the time of writing, TCGplayer lists this Hades card as having a market value of $25.04 USD
6 mana is a pretty big ask for an enchantment that does nothing when it hits the table, but the incremental value it generates simply for playing a normal game of Magic is incredible
Slide Cap' in to the Jeskai commander and back up the Super-Soldier with cards like Proud Pack-Rhino, Aegis of the Legion, and Boon of Safety