User blog comment:Willbachbakal/(Champion Rework) Veigar, the Tiny Master of Evil/@comment-1876049-20150228170730/@comment-1330314-20150228203744

His E's like an inescapable portal: once caught inside, going through a wall transports you to the far end of the trap, though still on the inside. You'd be able to move inside the trap freely, but wouldn't be able to leave it unless you blinked or teleported out.