This would not apply to jumping enemies like Rampagers or Slammers, or ones with built-in teleports like Runners or Weaver Worms. Only talking about the 4bc+ teleportation.
(The invincibility would be for like 2.5s, ending immediately if the enemy starts an attack)
Okay, hear me out.
Teleporting enemies is a great idea until you realize that because of how long it takes them to do so (as it should be, for them to be fair), the player can just sit next to where an enemy is about to teleport and immediately kill them when they do. Rather than forcing players to deal with enemies, it instead lets them draw enemies out of an otherwise difficult situation into a spot where the player can get a free kill.
I'm not opposed to mechanics like this being beneficial if used correctly, but I think teleportation is too easy to exploit right now. If enemies had a chance to reposition instead of essentially being spawnkilled, this tactic would be a lot riskier, and teleportation would actually cause the intended effect of punishing the player for running away from enemies.
(This would also buff malaise-spawned enemies, which could probably use it.)
