Not exactly an old pro either, but Collector -> Elm gives you everything but the Candy for Gatr, or Darkness Grace with a Spiritomb start can do the same as you use your supporters to search/draw into KGL pieces. And Legend Box can still get your titan out all on its own, and possibly throw a couple energy onto it for free.
As bulbados said, you only need to Mega Tidal Wave once for it to change the game. Even if you whiff for damage, you've probably discarded 5 cards that your opponent really didn't want to lose. Perhaps not as good a card as people are making it out to be, but not unplayable either.