Theorycrafting for using ultimates at Red/Blue Wyvern maps

The second newties map is also decent; there's a really tiny notch in the floor in the middle where you can hit all three lanes at once, including the jr. newties at the bottom, but it's pretty difficult to find, and a jr. newtie spawns on top of it. Then you'd just have to clear the left and right once in a while, using seal to make sure nest golems don't get in the way. That's where I used to go when I couldn't find a map during a 2x exp event, but blue wyverns might be better if you train like that. Both assuming no party.