After playing many battles after the update drops. I think the swap in moves should occur after the priority moves, but before regular moves will make it more balancing. My reasons are as follows:
Some swap in moves are not very effective. @Legomin1314 once pointed this out and suggested Ludia should add a damage component to moves like swap in nullification and swap in stun, but this may potentially make many dinos resemble the features of dracoceratops except they don’t do as much damage, which makes damage more important than its effect. By making swap in moves occur after the priority moves will make them very useful as if you can swap in a swap in nullification dino exactly on the same turn when indo does evasive, you don’t take damage but the opponent indo cannot use its evasive for the next 3 turns which helps this ability a lot. Swap in stun is for the same reason, if you predict a priority move is coming, you can do the swap and the opponent dino will be stunned in the next turn so you can do whatever you want.
Many players have problems with swap in damage dealers like dracoceratops. What really gives players headache is not killing a dino with low hp, but the potential multiple swap ins like: You know they are going to swap in this little guy but it’s still going to do over 2000 damage. By setting swap in moves after priority moves, it makes easier to deal with swap in damage dinos because it’s much more predictable when you know your opponent have a dracoceratops and on the opponent’s second swap, you can use instant distraction, regeneration, instant charge, or even evasive and cloak to mitigate this damage. In the meantime, this will still keep dracoceratops very useful since your opponent don’t know you have this dino on the first time you swap it in. It just gives players far more ways to counter it other than swapping in a fresh dino to take a rampage if you want to do it multiple times in a single match.
Any thoughts? Healthy debates are welcomed!