Before: [Main] 1 of your opponent's Digimon gets -6000 DP for the turn. Then, play 1 purple or yellow Digimon card with 6000 DP or less from your trash without paying its memory cost.
After: [Main] 1 of your opponent's Digimon gets -6000 DP for the turn. Then, you may play 1 purple or yellow Digimon card with 6000 DP or less from your trash without paying its memory cost.
Read as the errata when playing.