Card of Safe Return will most likely never come off the list. The card is soooo broken. You can just draw like nutz with certain cards. FF was the big problem with Chaos Dragons. Allowing them to set up first turn and be set the rest of the game.
It generated too much advantage for no effort. Then it could bring out a 5000 attack point monster 2 turns later. It also allows HERO's to set up their grave easily for Miracle Fusion. Card is crazy good.