The other three mana sweepers dont cleanly handle everything the way Clarion does, and like I said before once you start asking about four, five, or six mana its too easy for your opponent to come out under your sweeper and punish you for tapping out
The chances of an opponent having three or more creatures on the field is pretty high, especially with all the token commanders running around these days, making Defense of the Heart a delayed but powerful creature tutor
5D's Decade Duels 2010 Yu-Gi-Oh
The effect monster, Micro Coder If a Cyberse monster you control would be used as Link Material for a "Code Talker" monster this card in you hand can also be used as material
Now that I'm done yapping, here's how I would separate the obscure characters of GX into 2 categories: Decks that I can realistically build even if there are a few anime exclusive cards missing: Abidos the Third The Admiral Bauregard & Brier (The Duel Giant) Brron, Mad King of Dark World Dark Magician Girl Dimitri (Yugi's stolen GX era deck) Don Zaloog Fonda Fontaine Franz Gravekeeper's Chief Jinzo Kagemaru Kaibaman Kozaky Lorenzo Makoto Missy Princess Rose Reginald Van Howell III Chancellor Sheppard Sky Scout/Harpys Brother (Birdman) Skull Knight Slade Princeton Sorano T-Bone Decks I would rather not build either because we haven't seen the characters play enough cards or because too many (or in some cases all) of their cards are still not printed: Alice Alien of Light Amnael Bob Banter Czar Dr