The mere existence of Trump Card was a huge problem. The true problem of this card was not the draw of powerful supporters many times a turn not the long games , not the ability to draw like crazy. The first point is the one creating all the rest. The card was clearly going against one of the 4 major ways that conclude a match.
1) Taking all prizes
2)Killing a pokemon with no pokemon in bench
3)Tapping out (surrender)
4)RUN OUT OF CARDS
There was no explanation for a card going against such a basic rule to exist, even if no decks would have used it,still the print was an uncharacteristic mistake. I consider myself an experienced tcg player and i cannot remember seing such an unfair illogical card since MTG's Jace,Mind Sculptor.