This card exists in the context of the "Poké" Archetype by the Pokémon Archetype Club. So the effect may affect or may be affected by other cards in the archetype. (Link to the rest of the Archetype:https://forum.yugioh.../#entry7101911)
The idea of this card is to make the evolution mechanic more consistant, reliable and fun to use. All while not being an objective consistancy booster.
PokéAbility Parental Bond
Reveal 1 "Poké" monster in your hand; Add 1 monster from your Deck to your hand, that specifically lists the revealed card in its text or that is specifically listed in the text of the revealed card.
The downside of this of this card is that you are showing your opponent information about your hand and if you do not already have a "Poké" monster in your hand that can evolve or be evolved from something this card is a brick. The upside however is very clear, it resolves bricks with level 5 or higher evolution Pokémon and it creates stronger boards "for free" if you have a basic Pokémon in your hand.