My favourite ever edition of anything was 2nd edition Epic. I played it the most and loved the grand feel of it. The game was simple enough to understand quickly and you had tons of miniatures. On top of the base game there was Armies of the Imperium, Renegades and Ork & Squat Warlords then at the end there was this one which I missed out on.
here. It is the centre of the swarm and a swarm cannot exist without one. As a white card it does not have an Instinctive behaviour and is a command vehicle. so always charges and has first fire orders.It also brings into the game wounds. In 2nd edition, generally, if something failed its save it died but without void shields it needs protection so it can withstand 4 hits and can even regenerate.
Oh and here is a scale shot with a confused Ork Boy.