It's the overrated Sacred Phoenix of Nephthys! Such a card choice is only tempting me to complain on and on forever and ever.
Everything is wonderful about Phoenix. Heavy Storm effect is insane, while it got a recursion effect that's even more powerful than Vampire Lord. It even got its own searcher to help with the summoning. However, it got a huge problem, and that is there is only one phoenix per deck.
If that one phoenix is removed in any way possible (DD Warrior Lady, DD Assailant, DD Trap Hole, Bottomless Trap Hole, Tsukuyomi, Gravekeeper Assailant or Book of Moon + Nobleman of Crossout, Soul Release, chaos sorcerer, etc), regardless of how slim the chances are after the new banlist, Phoenix deck will be doomed for life. It's truly a formidable opponent, and every deck should consider a method to defeat the phoenix if they ever want to play competitively. However, Phoenix deck will base their life and death on this one single card, as all the other support card cannot stand on their own (or they are just rather generic cards that'll do well in almost all decks anyway, like Jinzo.) I'm never fond of decks that rely on one card to do well. Even chaos decks got other support cards that are excellent to use, such as Chaos Sorcerer (who can also just wipe out Phoenix off the face of this planet.) Chaos can still stand without the BLS, even though they wont' be as strong as before.
It's a good card, and it deserves to be restricted, but it's too overrated for the hype that it gets...
EDIT: everyone do realize that scapegoat is going to be down to 1 right? =p
And if I'm using Phoenix, I'll use 2 hands too... you are just that desperate to bring out the beast, but only after DDA and DDWL have already suicided into something of less importance.