Can be used when you have 3 trap cards in the Graveyard. 1 random Trap Card in your Graveyard is added to your hand. Then, shuffle 1 random Trap Card in your Graveyard into your Deck. This skill can only be used once per Duel.
A unique and exclusive skill of Odion. It's an interesting skill. However, this skill has never been on any top tier PVP or farming decks, although it can be used in fun decks. It may be viable in the future updates.
I don't understand konami's logic sometimes.
The reason for this skill being changed is that konami quotes that it: "gets very little use in high level play". So in order to fix that, they made this skill.... worse??
see.. although returning 1 trap card back to your hand (and shuffling 1 back in the deck) is an improvement over the previous skill, the fact that it can only be used only ONCE in a duel is NOT an improvement.
In a way, the old skill was better because it can be used each time 3 of your trap cards go to the grave (1 trap card gets randomly shuffled back in).