If "Castle of Dark Illusions" is face-up on the field, increase the ATK and DEF of this card by 100 points. As long as this "Castle of Dark Illusions" remains face-up on the field, the ATK and DEF of this card continues to increase by 100 points during each of your Standby Phases. This effect continues until your 4th turn after the card is activated.
I see a lot of hate for this card, but honestly I have lost to bonz with some of my best decks because of how it runs. Not only does this combo well with Castle of Illusions, boosting its attack to obscene levels if unchecked, the true terror is his daughter, Pumprincess the princess of ghosts, which lowers all opponents monsters attack during every standby phase. If you get the illusions combo and the Pumprincess combo off, You will always be growing in power while your opponents monsters cant do anything to stop the onslaught. Heck, I almost lost a duel because my Meteor B. Dragon was a puny 1600 attack thanks to all the counters on the field. And that monster was originally 3500! Really looking forward to see Bonz's skills to get these combos working.