The archetype's name is taken from code talkers. These individuals, who were typically Native Americans, were used by the United States during wars in the 20th Century as a means of encrypting and decrypting communications by using obscure languages that were not widespread and were difficult to translate.
Prevents the destruction of a monster it points to by battle and reduces battle damage to 0, then either it or 1 monster it points to gains ATK equal to the current ATK of the opponent's battling monster until the end of the turn.
When battling an opponent's monster, it Tributes 1 monster it points to in order to make its ATK become double its original ATK during that damage calculation only.
Each member of this archetype appears to have Link Arrows that aids their abilities, regardless of being in the Extra or Main Monster Zone, and that is compatible for co-linked related effects. Through Link Arrows, they share "power-up" effects that apply to either themselves or ally monsters. With the help of "Recoded Alive", you can switch your "Code Talker" monster depending on the situation.
Since they are Link Monsters and their minimum effective abilities require correct placement of the cards on the field, they could be wasteful if Summoned at incorrect timing, so be thoughtful. For example: If your "Decode Talker" does not have at least an opponent's monster to point to; you control only a 2300 ATK non-effective monster, nothing from which to power-up nor to tribute for protection; while "Encode" is completely focused on ally monsters