>>32936864Well, for starters, pursuit loses all value and becomes a garbage move. Tyranitar uses crunch instead and achieves the same thing without having to risk a 50-50 with a 40 bp move. And that's just an example. Switching having the lowest possible priority means that every mon and every move works as a pursuit trapper, at all times.
As teleport replaces the old switch in terms of priority, it becomes a key move for the mons that do get it, as they become the only ones that can switch before getting hit. Alakazam, being most likely the most relevant user of teleport, becomes a staple of whatever meta we get. Pursuit's literal only purpose becomes the trapping and elimination of the opponent's alakazam.
U-turn and volt switch in the expression "gaining fast momentum" lose all meaning. You hit with a 70 bp move, you get hit by whatever the opponent chooses, THEN you switch out. Pointless if the user is even the slightly bit fast. The only kind of u-turn/volt switch that is relevant anymore is the slow one. Slow things that can take hits and use slow u-turn/volt switch, like magearna, become even more valuable. All in all, however, the action of switching out predicting a slow u-turn to invalidate the opponent's momentum and receive their switch with a switch of your own becomes a real thing that would happen often.
Fast but fragile mons, specially ones that would otherwise enjoy running a choice set), become pointless if they're either A) unable to use teleport or B) don't have the coverage to stay in in many different mons without switching out. Slow tanks become prominent as they don't care as much if they get hit before switching. Mons with regenerator become more important than ever. Most teams run a mix of tanks and set up sweepers that can stay in once they boost. Leading with the wrong pokemon might literally decide matches in a guaranteed way.
The meta would change in ways that escape everything we know about pokemon.
