Depending on what your opponents discard, you can wind up drawing more than the number of cards discarded, since Kefka draws equal to the number of card types among discarded cards
2000 Pokemon Topps Chrome Series 1 Sparkle Charizard #6 26
This shapes the gameplay as you have to plan ahead, knowing that your summons (and your opponents) wont be around forever
8 Green Jewelry Bonney Slowing Down The Game Sets: [OP-07] 500 YEARS IN THE FUTURE, [EB-02] Anime 25th Collection, [ST-24] GREEN Jewelry Bonney Jewelry Bonney is an interesting Leader because, unlike most decks, her strategy is focused on defense rather than attack
If someone lands an early Progenitus, that's a two-turn clock, and very few effects outside of sacrifice effects or board wipes will stop that clock
Without Energy, none of your Pokemon can attack