So I've got Twinned Spell and Vortex Warp. I'm looking to abuse this in conjunction with hazard zone spells; one of particular interest is Spirit Guardians. What I want to do is take my ally from place X and enemy from place Y and place them near one another (both displaced to a new location) so that the enemy would proc Spirit Guardians and another hazard upon entering and again on their turn. Now, Spirit Guardians says:
An affected creature's speed is halved in the area, and when the creature enters the area for the first time on a turn or starts its turn there, it must make a Wisdom saving throw. On a failed save, the creature takes 3d8 radiant damage (if you are good or neutral) or 3d8 necrotic damage (if you are evil). On a successful save, the creature takes half as much damage.
Twinned Spell says:
When you cast a spell that targets only one creature and doesn’t have a range of self, you can spend a number of sorcery points equal to the spell’s level to target a second creature in range with the same spell (1 sorcery point if the spell is a cantrip).
Vortex Warp says:
You magically twist space around another creature you can see within range. The target must succeed on a Constitution saving throw (the target can choose to fail), or the target is teleported to an unoccupied space of your choice that you can see within range. The chosen space must be on a surface or in a liquid that can support the target without the target having to squeeze.
Last part of this ruling comes from Sage Advice Compendium, which says:
Our design intent for such spells is this: a creature enters the area of effect when the creature passes into it. Creating the area of effect on the creature or moving it onto the creature doesn’t count.
Far as I can tell, this is a unique situation in the sense that the hazard zone and creature are both moving simultaneously so previous precedent doesn't make this trivial. So, I guess the question is whether they're entering Spirit Guardians when Vortex Warped; does Twinned Vortex Warp occur simultaneously or progressively (if progressively, they're trivially entering) and if not, does the fact that the hazard zone move matter if they're also moving into it for the first time in the turn? By all my logic this should work but I'd like for others to weigh in here.