I haven't used Escape Button yet (though I do have one), is it confirmed to let you choose who you can switch in?The trick is to give Durant a Escape Button so you can Entrain, get switched out when they attack, and switch in Chandelure before the turn even ends.
As is Truant Durant.
They're presumably talking about Dream World (not the PO DW OU tier, mind you), where they're allowed.