While the "ease of flipping" category is, in large part, a product of the number of defense counters on the battle (battles range from three to seven defense counters, and a battle with three defense counters will be much easier to flip than one with seven), it also takes other factors into consideration, like whether the battle makes creatures (if so, we can use them to help defeat the battle, making it easier to flip) or whether the battle acts as removal (which can get a blocker out of the way, making it easier to attack and defeat the battle)
Rick hearkens back to my favorite Ikoria design, Grimdancer
It is common for blue to always lean towards spells to some extent, but perhaps because rooms were allocated to blue-red this time, the creature density is lower than usual, so be careful
Much like Athreos, Heliod is great as a commander or as an inclusion in your deck
Pull rates that make this Surging Sparks figurehead a little elusive