Who knows, maybe the same will happen to 30th Anniversary
This makes it so Heatran-GX can act as an explosive finisher that the opponent will constantly have to be wary of
Key pieces for a good Grima deck would be Strionic Resonator to double your thievery shenanigans, a good haste enabler through Swiftfoot Boots/Lightning Greaves as well as a way to punish your opponents such as Leyline of the Void or Dauthi Voidwalker
If this card is Normal or Special Summoned from the hand: You can add "Mekk-Knight" monsters with different names, except "Mekk-Knight Blue Sky", from your Deck to your hand, equal to the number of your opponent's cards in this card's column
meaning in order to use it on his own five headed dragon, you would need to first raise their LP by 1000 points, AND swap dragon to THEIR monster instead
Since even the best Normal Monsters cant search or draw cards on their own, you can quickly burn through your resources, meaning you have to rely on luck to turn a duel around or secure a victory