While Cavern of Souls feels like the biggest hit in the main set, Im also very excited about Growing Rites of Itlimoc and Resplendent Angel because these cards have crept up a lot in price over time
If no one is running enough removal, congrats, you brought a set of Wolverine claws to a pillow fight
Robson, meanwhile, can attack quickly with haste for immediate damage
If you know you are going for the complete set of Mythics, there's an argument to wait to open everything just once, at the Mythic Point
Again, limited by time, you spend Wonder Hourglasses to recover wonder stamina for essentially a game of lucky pick: you select a group of five cards on offer, they're shuffled up in a whirl, follow-the-cup magic trick style, and you pick one in the hope it was that fancy full-art Pidgeot or one missing, mid-stage evolution for that deck you're building
Ride the winds of battle