However, you have access to 5-cost Queen and 9-cost Kaido in this deck, so you can buy the Starter 4 deck for those cards, but not really to play with the deck
However, when this card is paired with the generic hand trap, Droll & Lock Bird, the opponent is not able to draw a new hand, thus leaving them with no cards to play and putting them in a spot where they are almost unable to win
That is very powerful
Speaking of Greasefang, Okiba Boss's ability, Defabricate stops it in its tracks, giving you one extra turn before your opponent brings the Parhelion 2 to the battlefield
Iron Valiant / Iron Boulder A Psychic deck that reduces its own attack costs the more Iron Valiant you have in play, eventually letting Iron Boulder swing for up to 140 damage with the right setup
Once per turn, when a "Subterror" monster you control inflicts battle damage to your opponent: You can target 1 "Subterror" card in your Graveyard, except "Subterror Cave Clash"