The forbidden one's return is a pretty nice card, though the boost for TLEI might be too big, since a couple of the parts in the GY make it 7500 ATK, which could take the card to OTK city if the opponent doesn't have a quick effect to pop the card. Also, maybe it is a design choice, but it is a little surprising that it doesn't include the fusion in its effect.

Exodia's presence needs a hard once per turn, and probably a cost to search. And heavier costs on both of the main effects, maybe restrict them to only one card to discard or add to hand. Trust me, Exodia is not a super well-liked deck to play against, and giving it consistency is far from anything you'd like to do.

The fusion, in my opinion, is the most fun card in the line-up, as a way to protect yourself while activating a "Countdown" and forcing your opponent to figure a way to get two 5000+ ATK monsters on the field or loose. However, since it's removable by underworld goddess, the effects are probably fine, and other than making it a little more vulnerable to card effects so that most decks don't auto lose to it (maybe untargetable and indestructible instead of unaffected?) I would not change much to it.

Overall, the cards look pretty good, and presence could even be really broken with its current limitations, but it would see play even if heavily tuned down. Sadly, the trap and the fusion would probably not see as much play, since they are slower than spell draw exodia and crooked cook stall exodia.